calculate the number of atp generated from one saturated 12 ‑carbon fatty acid. assume that each nadh molecule generates 2.5 atp and that each fadh2 molecule generates 1.5 atp .

Answers

Answer 1

From one saturated 12-carbon fatty acid, approximately 75 ATP molecules can be generated through the process of β-oxidation and the subsequent citric acid cycle.

To calculate the number of ATP generated from one saturated 12-carbon fatty acid, we need to consider the process of β-oxidation, which breaks down the fatty acid into acetyl-CoA units.

In β-oxidation, each round produces:

- One NADH molecule

- One FADH₂ molecule

- One acetyl-CoA unit

For a 12-carbon fatty acid, there will be six rounds of β-oxidation as each round removes two carbon units (acetyl-CoA). Therefore, we will have six NADH and six FADH₂ molecules generated.

Now, let's calculate the total number of ATP generated:

- Each NADH molecule generates 2.5 ATP.

- Each FADH2 molecule generates 1.5 ATP.

Total ATP from NADH: 6 NADH × 2.5 ATP/NADH = 15 ATP

Total ATP from FADH2: 6 FADH2 × 1.5 ATP/FADH2 = 9 ATP

Additionally, each acetyl-CoA unit enters the citric acid cycle (Krebs cycle) where it undergoes further oxidation, producing three NADH molecules, one FADH₂ molecule, and one GTP molecule (which is equivalent to one ATP molecule).

Total ATP from acetyl-CoA units: 6 acetyl-CoA × 3 NADH × 2.5 ATP/NADH = 45 ATP

                                  6 acetyl-CoA × 1 FADH2 × 1.5 ATP/FADH₂ = 9 ATP

                                  6 acetyl-CoA × 1 GTP = 6 ATP

Adding up all the ATP generated:

15 ATP (from NADH) + 9 ATP (from FADH₂) + 45 ATP (from acetyl-CoA) + 6 ATP (from GTP) = 75 ATP

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Related Questions

What volume of a concentrated HCL , which is 36.0% HCL by mass and has a density of 1.179g/mL , should be used to make 5.10 L of an HCL solution with a pH of 1.8?

Answers

Concentration is a term used in chemistry to refer to the amount of a substance present in a particular volume or mass of a solvent or mixture. It is expressed as a percentage, weight by volume, or molarity, among other things, and it is used to measure the amount of one or more substances present in a given solution.

The HCL solution has a pH of 1.8, indicating that it is acidic. In order to produce the HCL solution, it will be necessary to add concentrated HCL of a certain volume. Let us determine the volume of concentrated HCL required to make 5.10 L of an HCL solution with a pH of 1.8.

What is meant by concentration?

Concentration is a term used in chemistry to refer to the amount of a substance present in a particular volume or mass of a solvent or mixture. It is expressed as a percentage, weight by volume, or molarity, among other things, and it is used to measure the amount of one or more substances present in a given solution. Density is the amount of mass that a substance contains per unit volume. When a substance has a high density, it is denser than when it has a low density. As a result, density is a key factor in the calculation of the amount of concentrated HCL required to produce a specified amount of HCL solution. A concentrated HCL that is 36.0% HCL by mass and has a density of 1.179 g/mL is the concentrated HCL mentioned in the problem. To determine the volume of concentrated HCL required to make 5.10 L of an HCL solution with a pH of 1.8, we will use the formula for calculating the volume of concentrated HCL, which is given as:

Volume of concentrated HCL = (Molar concentration × Volume of HCL solution) ÷ (Molar concentration of concentrated HCL × Density of concentrated HCL)

Where: Molar concentration = 10-pH

Volume of HCL solution = 5.10 L

Molar concentration of concentrated HCL = 36.0% by mass = 12.1 M = 0.121

Density of concentrated HCL = 1.179 g/mL

Substituting the values we get: Volume of concentrated HCL = (10-pH × Volume of HCL solution) ÷ (Molar concentration of concentrated HCL × Density of concentrated HCL)

Volume of concentrated HCL = (10-1.8 × 5.10 L) ÷ (0.121 × 1.179 g/mL)

Volume of concentrated HCL = 334.68 mL or 0.33468 L

Therefore, the volume of concentrated HCL required to make 5.10 L of an HCL solution with a pH of 1.8 is 0.33468 L.

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arrange these oxoacids (oxyacids) according to acid strength.
Most acidic - Least acidic
Answer Bank HIO HBrO HCIO

Answers

The order from most acidic to least acidic oxacid is HCIO > HBrO > HIO.

Oxoacids, also known as oxyacids, are a group of acids that have one or more oxygen atoms in addition to hydrogen and a nonmetal. The acid strength of oxoacids can be determined by the electronegativity of the nonmetal and the number of oxygen atoms present in the molecule. The higher the electronegativity of the nonmetal and the greater the number of oxygen atoms, the stronger the acid is.

Most acidic: HCIO > HBrO > HIO

Least acidic: HIO > HBrO > HCIO

To figure out which oxoacid is the most acidic, we must first determine which nonmetal has the highest electronegativity. Fluorine possesses the highest electronegativity among the elements in the periodic table.

As a result, the amount of oxygen surrounding it will have the most pull on the oxygen-hydrogen bond in an acid. Chlorine is the second most electronegative nonmetal, followed by bromine, and then iodine.

As a result, we can expect HCIO to be the most acidic oxyacid, followed by HBrO and then HIO.

Therefore, the order from most acidic to least acidic is HCIO, HBrO, and HIO.

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what is the reaction that corresponds to the first ionization energy of rubidium, rbrb ?

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The reaction that corresponds to the first ionization energy of rubidium is:Rb (g) → Rb+ (g) + e-.

The first ionization energy of an element is the energy required to remove the most loosely held electron from one mole of the gaseous atoms of an element. Rubidium is a highly reactive alkali metal that is easily ionized. It is a silvery-white metal that reacts vigorously with air and water vapor. Rubidium's first ionization energy is 4.177 electron volts (eV) or 403 kJ/mol. Rb's ionization energies decrease as more electrons are removed since the attraction between the positively charged nucleus and the remaining electrons gets stronger. Rubidium is used in atomic clocks, photocells, and vacuum tubes as a result of its low work function. It is also used in the study of biomedical science due to its similarity to potassium.  The reaction that corresponds to the first ionization energy of rubidium is:Rb (g) → Rb+ (g) + e-.

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for the chemical equilibrium aa bb d cc, the value of the equilibrium constant k is 10. what is the value of the equilibrium constant for the reaction 2aa 2 bb d 2cc?

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The expression below: K' = K²K' = 10²K' = 100 the value of the equilibrium constant for the reaction 2aa + 2bb ⇌ 2cc is 100.

What would be the value of the equilibrium constant for the reaction 2aa 2 bb d 2cc?

When the chemical reaction aa bb d cc attains equilibrium, it will follow the expression below:aa + bb ⇌ ccK = 10Now, the chemical equation for the reaction of 2aa 2 bb d 2cc is shown below:2aa + 2bb ⇌ 2ccK' = ?The equilibrium constant for the given chemical reaction can be determined using the following expression

:K' = [C]² / ([A]² x [B]²).

where:[A] = concentration of reactant aa[B] = concentration of reactant bb[C] = concentration of product cc Since the chemical reaction is 2aa + 2bb ⇌ 2cc, its equilibrium constant will be the square of the K value for the first chemical equation. This is shown in the expression below: K' = K²K' = 10²K' = 100

Therefore, the value of the equilibrium constant for the reaction 2aa + 2bb ⇌ 2cc is 100.

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how a date is achieved using half life and ratios of parent daughter isotopes

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If there were 12.5 daughter isotopes, it would have been 2 half-lives, or 2 million years since the rock formed.By knowing the half-life of the parent isotope and the ratio of parent to daughter isotopes in the rock, scientists can calculate the age of the rock.

Radiometric dating is the process of determining the age of rocks using radioactive isotopes. The half-life of a radioactive element is the time it takes for half of the radioactive atoms to decay. When using half-life and ratios of parent-daughter isotopes, scientists can determine the age of a rock. Here is how a date is achieved using half-life and ratios of parent-daughter isotopes:Radioactive isotopes are incorporated into the rock at formation, and they decay over time. The parent isotope decays into a daughter isotope at a known rate called its half-life. By measuring the ratio of parent to daughter isotopes in the rock, scientists can calculate how long it has been since the rock formed.For example, let's say a rock contains 100 parent isotopes and 25 daughter isotopes. If the half-life of the parent isotope is 1 million years, then after 1 million years, there should be 50 parent isotopes and 50 daughter isotopes. Since there are only 25 daughter isotopes in our rock sample, it must have been 1 half-life, or 1 million years since the rock formed. If there were 12.5 daughter isotopes, it would have been 2 half-lives, or 2 million years since the rock formed.By knowing the half-life of the parent isotope and the ratio of parent to daughter isotopes in the rock, scientists can calculate the age of the rock.

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1. Find the pH of 2.5 M sulfurous acid (H2SO3). FIrst Ka=1.3x10-2; second Ka= 6.3x10-8

2. Find the final concentration of [H+] in 2.0M phosphoric acid solution given that the first Ka=7.5x10-3, second Ka=6.2x10-8 and third Ka=4.8x10-13

Answers

We take into account the two dissociation processes of the 2.5 M sulfuric acid (H2SO3) solution to determine its pH. We solve for the concentration of H+ ions using the supplied equilibrium constant (Ka) values of 1.3x10-2 for the first step and 6.3x10-8 for the second step.

The concentration of H+ from the first dissociation is quite low because of the low Ka1 value. We determine that the concentration of H+ in the second dissociation step is roughly 3.97 x 10-4 M, resulting in a pH of 3.40.

We take into account each of the three dissociation processes for the 2.0 M phosphoric acid (H3PO4) solution. Ka1 = 7.5x10-3, Ka2 = 6.2x10-8, and Ka3 = 4.8x10-13 allow us to infer that the concentration of H+ in each phase is substantially lower than 2.0 M.

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is carbon oxygen double bond more polar than carbon carbon double bond

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Yes, the carbon-oxygen double bond is more polar than the carbon-carbon double bond. Here are some details and explanations on why it is so A polar bond is a chemical bond where a pair of electrons is unequally shared between two atoms.

The unequal sharing of electrons results in the formation of two poles, a negative pole and a positive pole. The difference in the electronegativity of the bonded atoms determines the polarity of the bond. The greater the difference in electronegativity between the two bonded atoms, the more polar the bond is.What is the electronegativity of an atom?The electronegativity of an atom is its ability to attract a pair of electrons towards itself. The higher the electronegativity of an atom, the greater its ability to attract electrons.What is a double bond?A double bond is a type of chemical bond where two pairs of electrons are shared between two atoms.

The difference in electronegativity value has an implication on the polarity of the bond. The greater the difference in electronegativity, the more polar the bond is. In the case of carbon-oxygen double bond, the difference in electronegativity is 1.0, which means that the bond is more polar than the carbon-carbon double bond, which has a difference in electronegativity of 0. In summary, the carbon-oxygen double bond is more polar than the carbon-carbon double bond.

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what volume of 0.25 m hcl must be diluted to prepare 0.82 l of 7.1×10-2m hcl?

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we need to dilute 0.23 L (or 230 mL) of 0.25 M HCl to prepare 0.82 L of 7.1×10^−2

we can use the formula for dilution:

D1V1 = D2V2

Where D is the concentration and V is the volume.

We can rearrange the formula to solve for V1, which is the volume of the concentrated solution that needs to be diluted

:V1 = D2V2 / D1

Now we can plug in the values we know:

D1 = 0.25 MV2 = 0.82 LD2 = 7.1×10^−2 MV1 = ?

So:V1 = (7.1×10^−2 M) (0.82 L) / (0.25 M)V1 = 0.23288 L

We can simplify this to two significant figures, which gives:V1 = 0.23 L

Therefore, we need to dilute 0.23 L (or 230 mL) of 0.25 M HCl to prepare 0.82 L of 7.1×10^−2 M HCl.

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the acid-dissociation constant, ka, for an unknown acid ha is 4.57 × 10−3 . what is the base-dissociation constant, kb, for the unknown anion a− ?

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The base-dissociation constant (Kb) for the unknown anion a- is 2.19 x 10^-12. The relationship between acid-dissociation constant (Ka) and base-dissociation constant (Kb).

Substituting the value of Ka into the above equation:Ka x Kb = Kw4.57 x 10^-3 x Kb = 1.0 x 10^-14Kb = 1.0 x 10^-14 / 4.57 x 10^-3Kb = 2.19 x 10^-12Long answerThe acid-dissociation constant (Ka) is a measure of the strength of an acid. It is defined as the equilibrium constant for the dissociation reaction of an acid into its conjugate base and a hydrogen ion (H+).

The base-dissociation constant (Kb) is a measure of the strength of a base. It is defined as the equilibrium constant for the dissociation reaction of a base into its conjugate acid and a hydroxide ion (OH-).The relationship between Ka and Kb is given by the following equation:Ka x Kb = Kwwhere Kw is the ion product constant of water and has a value of 1.0 x 10^-14 at 25°C.If we know the value of Ka for an acid, we can use the above equation to calculate the value of Kb for its conjugate base.

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how does the pseudo-3d view from this position and altitude aid in bringing out the terrain features of zion (compared to what you originally saw in the overhead view earlier)?

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The altitude is a crucial component of the 3D view since it enables a better understanding of the terrain. In a pseudo-3D view, an image is displayed with the perception of 3D, although it is not a genuine 3D image.

The view from the pseudo-3D angle, however, allows viewers to understand the mountains, cliffs, and other terrain features in a more realistic way. The image is formed by utilizing an aerial image and enhancing it with a 3D effect. As a result, the image has more depth and detail than a conventional overhead image.The altitude is another crucial component that aids in the display of the terrain features of Zion. The higher the altitude, the more information is provided. For example, the 3D map of Zion taken from a height of 30,000 feet can reveal the geography of the land, the valleys, and the different kinds of vegetation.

The same view, when taken from a higher altitude, such as a satellite, provides a more comprehensive perspective of the land.

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Based on the octet rule, determine the number of covalent bonds an atom of the following elements is likely to make in a molecule.
1. C
2. N
3. O
4. F

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Based on the octet rule, the number of covalent bonds an atom of the following elements is likely to make in a molecule is 1. C- 4; 2.N-3; 3. O - 2 and 4. F -1 covalent bond.

According to the octet rule, an atom may form as many covalent bonds as it takes to obtain eight valence electrons. This implies that an atom can form one or more covalent bonds with other atoms to fill the valence shell. For instance, carbon, nitrogen, oxygen, and fluorine are members of Groups 14, 15, 16, and 17, respectively.

As a result, each of these elements has four, five, six, and seven valence electrons. Based on the octet rule, the number of covalent bonds that an atom of the following elements is likely to make in a molecule is as follows:

Carbon (C) has four valence electrons, so it can form four covalent bonds to complete its octet.

Nitrogen (N) has five valence electrons, so it can form three covalent bonds and a lone pair, or it can form five covalent bonds to complete its octet.

Oxygen (O) has six valence electrons, so it can form two covalent bonds and two lone pairs or it can form two covalent bonds to complete its octet.

Fluorine (F) has seven valence electrons, so it can form a single covalent bond to complete its octet.

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the solubility of ag₃po₄ in water at 25 °c is 4.3 × 10⁻⁵ m. what is ksp for ag₃po₄?

Answers

The Ksp value for Ag₃PO₄ is 3.18 × 10⁻¹⁴.

The solubility product constant (Ksp) for Ag₃PO₄ can be calculated using the solubility information provided. The solubility of Ag₃PO₄ in water at 25 °C is given as 4.3 × 10⁻⁵ M.The formula for Ag₃PO₄ is Ag₃PO₄(s) → 3Ag⁺(aq) + PO₄³⁻(aq). Since Ag₃PO₄ dissociates into three Ag⁺ ions and one PO₄³⁻ ion, the equilibrium expression for the solubility can be written as:
Ksp = [Ag⁺]³ [PO₄³⁻]
We know that the solubility of Ag₃PO₄ is 4.3 × 10⁻⁵ M. Since Ag₃PO₄ dissociates completely, the concentration of Ag⁺ and PO₄³⁻ ions will be equal to the solubility.Substituting the solubility value into the equilibrium expression, we get:
Ksp = (4.3 × 10⁻⁵)³ × (4.3 × 10⁻⁵) = 3.18 × 10⁻¹⁴
Therefore, the Ksp value for Ag₃PO₄ is 3.18 × 10⁻¹⁴.

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Which of the following statements about electrolysis is FALSE?
(1 Point)
(A) non-metals like oxygen and chlorine are formed at the cathode
(B) any ionic compound dissolved in water can undergo electrolysis
(C) an electrolyte is a solution or liquid (molten state) that contains ions and so
(D) negatively charged ions migrate to the anode

Answers

The given statement (A) non-metals like oxygen and chlorine are formed at the cathode is FALSE. Electrolysis is a process of using electric current to carry out a non-spontaneous chemical reaction.

Correct option is, A.

The compound that is undergoing electrolysis is referred to as an electrolyte. In electrolysis, the cathode is the negatively charged electrode. It attracts positively charged ions from the electrolyte and then reduces them. Non-metals like oxygen and chlorine are formed at the anode. Positively charged ions migrate to the cathode, and negatively charged ions migrate to the anode.

In electrolysis, any ionic compound dissolved in water can undergo electrolysis, thus statement (B) is correct. An electrolyte is a solution or liquid that contains ions and hence can conduct electricity. Therefore, statement (C) is correct. Negatively charged ions migrate to the anode and positively charged ions migrate to the cathode.

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at 25 °c and 765 torr, carbon dioxide has a solubility of 0.0342 m in water. what is its solubility at 25 °c and 1870 torr?'

Answers

The solubility of CO2 in water at 25°C and 1870 torr is 0.0833 m.

Henry's law can be used to solve this problem. It says that at a given temperature, the solubility of a gas in a liquid is directly proportional to the partial pressure of the gas in equilibrium with the liquid. Let's solve the problem using this principle.

Let's denote the solubility of CO2 in water at 25°C and 765 torr as S1, and the solubility of CO2 in water at 25°C and 1870 torr as S2.

Now, according to Henry's Law, we have:

P1 / S1 = P2 / S2

where P1 and P2 are the partial pressures of CO2 in torr.

We can rearrange this equation as:S2 / S1 = P2 / P1

Let's plug in the given values:S1 = 0.0342 mP1 = 765 torrP2 = 1870 torr

Now let's solve for S2:S2 / 0.0342 m = 1870 torr / 765 torrS2 = (0.0342 m) x (1870 torr / 765 torr)S2 = 0.0833 m

Therefore, the solubility of CO2 in water at 25°C and 1870 torr is 0.0833 m.

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the change in enthalpy (δhorxn)(δhrxno) for a reaction is -33.1 kj/molkj/mol . the equilibrium constant for the reaction is 1.5×103 at 298 kk.

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Enthalpy change (δHrxn) is the amount of heat transferred at constant pressure in a system as a result of a chemical reaction. Equilibrium constant (Kc) is the proportion of concentrations of reactants and products at equilibrium.

Enthalpy change (δHrxn) is the amount of heat transferred at constant pressure in a system as a result of a chemical reaction. Equilibrium constant (Kc) is the proportion of concentrations of reactants and products at equilibrium. The formula used to calculate the equilibrium constant from enthalpy change is:

ΔHrxn = -RTlnKc

where ΔHrxn is the enthalpy change, R is the universal gas constant, T is the temperature in kelvins, and Kc is the equilibrium constant. When you rearrange this equation to isolate Kc, you get:

Kc = e^(-ΔHrxn/RT)

where e is the mathematical constant e (approx. 2.718) and the rest of the variables have the same meaning as before. We can substitute the given values and obtain:

Kc = e^(-(-33.1 kJ/mol)/(8.314 J/mol*K * 298 K))= 1.5 * 10^3

Taking the natural logarithm of both sides of this equation:

ln(Kc) = -ΔHrxn/RTln(1.5 * 10^3) = -(-33.1 kJ/mol)/(8.314 J/mol*K * 298 K)ln(1.5 * 10^3) = 14.306

This means that the enthalpy change for this reaction is exothermic since ΔHrxn is negative. In other words, heat is being released into the surroundings.

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how many stereoisomers will be formed from the addition of phenyllithium to this molecule

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The addition of phenyllithium to the given molecule will produce three different stereoisomers; two diastereomers and an enantiomer.

For the calculation of stereoisomers from the addition of phenyllithium, we will first identify the given molecule.C6H5-CH2-CH(OH)-CH(Br)-CH3This molecule has four different groups attached to the carbon atom marked as chiral carbon. Hence, it is an asymmetrical molecule and has stereoisomers. Now, when phenyllithium is added to the given molecule, it will form three different stereoisomers.The three stereoisomers are as follows:Pair 1: Trans and Cis Diastereomers.

The two diastereomers are possible in this case because the H and the phenyl groups can either be on the same or opposite sides of the plane that bisects the molecule as shown below:Pair 2: EnantiomerPair 2 is an enantiomer because the Br, OH, and the phenyl group will be reversed relative to each other as shown below:In conclusion, the addition of phenyllithium to the given molecule will form three stereoisomers which include two diastereomers and an enantiomer.

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for mn3 , enter an equation that shows how the cation acts as an acid.

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MnO2+ is called manganic ion and is a powerful oxidizing agent. The above equation shows how Mn3+ cation acts as an acid.

Manganese(III) cation (Mn3+) can act as an acid under certain conditions. Mn3+ has an incomplete d-shell, resulting in the availability of electrons to donate, making it a Lewis acid. Mn3+ may react with water or other species as an acid, releasing a proton, which can be expressed in a chemical equation as follows:Mn3+ + H2O ⇌ MnO2+ + H+The above equation displays how the cation, Mn3+ acts as an acid.

In chemistry, Mn3+ or manganese(III) cation refers to the manganese ion with a charge of +3. A cation is an ion that carries a positive charge. Mn3+ has an incomplete d-shell, resulting in the availability of electrons to donate, making it a Lewis acid. Mn3+ can act as an acid, as it can accept a pair of electrons from a species or donate a proton to another species.

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(10 points) What is the amount of radioactivity given off by a typical banana that contains 420 mg of Potassium, due to the presence of the natural isotope of 40 K? which has a half-life of 1.248 x 10

Answers

The amount of radioactivity given off by a typical banana that contains 420 mg of Potassium, due to the presence of the natural isotope of 40 K, is about 15 Bq.

The half-life of 40K is 1.248 x 10⁹ y, which is about 4.5 x 10¹⁶ s. The number of 40K atoms in 420 mg of Potassium is about 1.2 x 10²¹ atoms. The activity of 40K is given by the following equation:

A = λN

where A is the activity, λ is the decay constant, and N is the number of atoms. The decay constant for 40K is 6.30 x 10⁻¹¹ s⁻¹.

Plugging in the values, we get the following:

A = (6.30 x 10⁻¹¹ s⁻¹)(1.2 x 10²¹ atoms) = 7.5 x 10¹⁰ s⁻¹

The activity of 40K is measured in becquerels (Bq), where 1 Bq = 1 decay per second. So, the activity of 40K in a typical banana is about 15 Bq.

It is important to note that the amount of radioactivity given off by a banana is very small. The average person is exposed to about 300 mSv of radiation per year from natural sources, such as radon gas, cosmic rays, and the food we eat.

The amount of radiation given off by a banana is about 0.000005 mSv, which is about 0.0002% of the average annual exposure from natural sources. So, eating a banana will not increase your risk of radiation exposure.

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Complete question :

What is the amount of radioactivity given off by a typical banana that contains 420 mg of Potassium, due to the presence of the natural isotope of 40 K? which has a half-life of 1.248 x 10⁹ y and is 0.0117% of all Potassium. Atomic mass of K is 39.0983 g and A = 6.023 x 10 23 atoms

Based on this idea, predict the surface tension ranking of the following substances: • Decane (C10H22) • Hexane (C6H14) • Octane (C8H18) • Pentane (C5H12) Write your prediction in the space below

Answers

The substances can be ranked in terms of surface tension as follows: Decane (C₁₀H₂₂) > Octane (C₈H₁₈) > Hexane (C₆H₁₄) > Pentane (C₅H₁₂).

Surface tension, which measures the force needed to stretch or break the surface of a liquid, is influenced by intermolecular forces. As the molecular weight and size of hydrocarbon chains increase, surface tension tends to be higher.

Decane has the highest surface tension due to its longer hydrocarbon chain, followed by octane, hexane, and pentane. The larger and heavier hydrocarbon chains in these substances result in stronger intermolecular forces, leading to higher surface tension.

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The yield of a chemical process is being studied, from previous experience:
a) The yield is expected to increase.
b) The yield is expected to decrease.
c) The yield is expected to remain the same.
d) The yield cannot be determined without further information.

Answers

The yield of a chemical process is being studied and the question is being asked about the expectation of yield. The possible expected outcomes are as follows:a) The yield is expected to increase.b) The yield is expected to decrease.c) The yield is expected to remain the same.d)

The yield cannot be determined without further information.The expected outcome of yield depends on various factors and cannot be generalized. These factors include the nature of the chemical process, the environment, the presence of any impurities, temperature, concentration, etc.

Therefore, to provide a more accurate answer, it is necessary to know the specifics of the chemical process that is being studied and then make a prediction based on that information. Hence, the expected yield cannot be determined without further information.

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acetylene is unstable at temperatures above ____ fahrenheit.

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Acetylene is unstable at temperatures above 300 degrees fahrenheit.

At temperatures, more than 149 degrees Celsius (300 degrees Fahrenheit), acetylene (C2H2) is typically regarded as unstable.

Acetylene can undergo a self-decomposition reaction at temperatures over this limit, resulting in a highly exothermic and perhaps explosive decomposition.

Acetylene is often carried and stored in specialised containers made to reduce the risk of temperature and pressure accumulation in order to ensure safe handling and storage.

Acetylene can become highly reactive and prone to breakdown at temperatures higher than this, resulting in dangerous situations and the possibility of explosions.

To reduce the hazards, handling and storing acetylene safely is essential while adhering to all applicable laws and regulations.

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for the following equilibrium, if ksp=2.0×10−15, what is the molar solubility of nickel hydroxide? ni(oh)2(s)↽−−⇀ni2 (aq) 2oh−(aq)

Answers

The molar solubility of nickel hydroxide (Ni(OH)2) is the maximum amount of nickel hydroxide that can dissolve in water to produce nickel ion (Ni2+) and hydroxide ion (OH-) ions.

To calculate the molar solubility of nickel hydroxide, we need to first write down the balanced chemical equation for the dissociation of nickel hydroxide in water. This is given by:

Ni(OH)2 (s)  ↔ Ni2+ (aq) + 2OH- (aq)

The solubility product (Ksp) expression for this reaction can be written as:

Ksp = [Ni2+] [OH-]2 = 2.0×10−15

The molar solubility (x) of nickel hydroxide in water can be determined using the Ksp expression and the stoichiometry of the reaction as follows:

x × (2x)2 = Ksp

= 2.0×10−15x3 = Ksp/4

= 2.0×10−15/4

= 5.0×10−16mol3/L3x

= (5.0×10−16mol3/L3)1/3

= 1.7×10−5 mol/L

Therefore, the molar solubility of nickel hydroxide is 1.7 × 10-5 M.

This implies that in a saturated solution of nickel hydroxide, the concentration of nickel ions is 1.7 × 10-5 M and the concentration of hydroxide ions is twice this value i.e. 3.4 × 10-5 M.

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The density of solid Ni is 8.90 g/cm^3. How many atoms are present per cubic centimeter of Ni?
A solid, Ni adopts a face-centered cubic unit cell. How many unit cells are present per cubic centimeter of Ni? What is the volume of a unit cell of this metal? What is the edge length of a unit cell of Ni?

Answers

The density of solid Ni is [tex]8.90 g/cm^3[/tex]. There are approximately [tex]4.92 \times 10^{22}[/tex] atoms present per cubic centimeter of Ni. Each unit cell of Ni has a volume of [tex]2.62 \times 10^{-23} cm^3[/tex]. The edge length of a unit cell of Ni is approximately 3.52 Å.

In a face-centered cubic (FCC) unit cell, there are four atoms located at the corners and one atom at the center of each face. To calculate the number of atoms per cubic centimeter, we first need to find the volume of one atom in the unit cell. Since there are four atoms at the corners, each contributing 1/8 of its volume to the unit cell, and one atom at the center of each face, contributing 1/2 of its volume, the total volume of the atoms in the unit cell is (4 x 1/8) + (1 x 1/2) = 1. Therefore, the volume of one atom is equal to the volume of the unit cell.

Given the density of Ni [tex](8.90 g/cm^3)[/tex], we can calculate the mass of one atom using the molar mass of Ni (58.69 g/mol) and Avogadro's number [tex](6.022 \times 10^{23} atoms/mol)[/tex]. The mass of one atom is approximately [tex]9.80 \times 10^{-23} g[/tex]. Dividing the density by the mass of one atom gives us the number of atoms per cubic centimeter, which is approximately [tex]4.92 \times 10^{22} atoms/cm^3[/tex].

The volume of the unit cell can be calculated by dividing the volume of one atom by the number of atoms per unit cell, which gives us approximately [tex]2.62 \times 10^{-23} cm^3[/tex]. Since an FCC unit cell consists of eight cubes, the edge length of the unit cell can be determined by taking the cube root of the volume, resulting in an edge length of approximately 3.52 Å (angstroms).

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Final answer:

There are approx. 8.48 * 10^22 nickel atoms per cm^3, approx. 2.12×10^22 unit cells/cm^3, the volume of one unit cell is ~4.71×10^-23 cm^3, and the edge length of one unit cell is about 3.61 * 10^-8 cm.

Explanation:

The density of solid Ni is given as 8.90 g/cm^3. Since Ni (Nickel) is face-centered cubic, it has 4 atoms per unit cell. So, first we need to find the number of moles per unit volume. The molar mass of Ni is roughly 58.69 g/mol. Convert this into atoms/cm^3 we get approx. 8.48 * 10^22 atoms/cm^3. Therefore, there are approx. 8.48 * 10^22 nickel atoms present per cubic centimeter of Ni.

For face-centered cubic unit cell, there are 4 atoms in one unit cell. Hence, number of unit cells per cm3 would be number of atoms per cm3 divided by 4. We'll then have ~2.12×10^22 unit cells/cm^3.

To find the volume of this unit cell, we'll simply divide the total volume (1 cm^3) by the number of unit cells. This gives ~4.71×10^-23 cm^3.

Lastly, to get the edge length of the unit cell, we just take the cube root of the volume of the unit cell. That leads us to an edge length of 3.61 * 10^-8 cm.

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Balance the following equation in acidic solution using the lowest possible integers and give the coefficient of H+.
Cr2O72-(aq) + I-(aq) ? Cr3+(aq) + I2(aq)

Answers

The balanced equation in acidic solution for the given reaction is:

Cr₂O₇²⁻(aq) + 6I⁻(aq) + 14H+(aq) → 2Cr³+(aq) + 3I₂(aq) + 7H₂O(l)

The coefficient of H+ is 14.

What is a coefficient in balancing chemical reaction?

In balancing a chemical reaction, coefficients are the numbers placed in front of the chemical formulas to ensure that the number of atoms of each element is the same on both sides of the equation.

These coefficients indicate the relative amounts of reactants and products involved in the reaction.

the balanced equation in acidic solution with the lowest possible integers is:

Cr₂O₇²⁻(aq) + 6I⁻(aq) + 14H+(aq) → 2Cr³+(aq) + 3I₂(aq) + 7H₂O(l)

The coefficient of H+ is 14.

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The Chemical equation for ethane combustion is: 7O2+2C2H6-->6H2O+4CO2. The gases behave ideally. Most nearly, what volume of O2 at 298k and 1.0atm is required for complete combustion of 10L of C2H6 (gas) at 500K and 1atm. answer choices: 16,19,21,22 liters.

Answers

Therefore, the volume of O2 needed at 298K and 1 atm is approximately 77 liters.

The balanced chemical equation for the combustion of ethane is shown below:

7O2 + 2C2H6 → 4CO2 + 6H2O

We can use the stoichiometry of the reaction to find out how much O2 is needed to completely react with 2 moles of C2H6.

2 moles of C2H6 requires 7 moles of O2.10 L of C2H6 will contain (10/22.4) x 2 moles of C2H6 = 0.892 mole C2H6.

So the amount of O2 needed will be: (7/2) x 0.892 mole C2H6 = 3.118 moles O2.

Since the gases behave ideally, we can use the ideal gas law to find the volume of O2 at 298K and 1 atm.

PV = nRTV = nRT/PV = (3.118 mol) (0.08206 L atm K-1 mol-1) (298 K) / (1 atm)V = 77.02 L ≈ 77 L

Therefore, the volume of O2 needed at 298K and 1 atm is approximately 77 liters.

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If you have 1 mole of a diprotic weak acid in solution, how much strong base much be added to reach the first equivalence point in a titration curve? How much strong base must be added to reach the pH that equals the pKa of the second titratable hydrogen?

Answers

A diprotic weak acid is an acid that has two replaceable hydrogen atoms. The acid will then undergo two dissociations to produce two hydrogen ions. As a result, the acid's reaction with bases is more complex, and it is dependent on the concentration of acid and pH.

A diprotic weak acid is an acid that has two replaceable hydrogen atoms. The acid will then undergo two dissociations to produce two hydrogen ions. As a result, the acid's reaction with bases is more complex, and it is dependent on the concentration of acid and pH. When titrated, the following data must be considered: the concentration of the acid, the concentration of the base, and the pKa values of the acid. The equivalent point is the point in titration where the number of moles of acid is equal to the number of moles of base added to it. In a titration curve, the first equivalence point is determined by the point where the initial amount of diprotic acid is neutralized. It's the point where the base added to the acid neutralizes all the H+ present in the solution.

The amount of strong base required to reach the first equivalence point can be calculated as follows: As per the equation, 1 mole of diprotic acid releases two moles of hydrogen ions, which means that to neutralize one mole of acid, you will require two moles of strong base. Therefore, you would require two moles of strong base to reach the first equivalence point in a titration curve. The pKa of the second titratable hydrogen would be equal to the pH at the halfway point between the two equivalent points. As a result, the amount of strong base required to reach the pH equivalent to the pKa of the second titratable hydrogen is also equal to the amount required to achieve the halfway point between the two equivalence points.

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identify the compound with the highest boiling point. question 32 options: ch3ch2ch3 ch3och3 ch3oh ch3cho ch3cn

Answers

Out of the given options, CH₃OH is the compound with the highest boiling point. So, the correct option is c.

To determine the compound with the highest boiling point among the given options, we need to consider the intermolecular forces present in each compound.

Intermolecular forces, such as hydrogen bonding, dipole-dipole interactions, and London dispersion forces, play a crucial role in determining the boiling points of compounds. The stronger the intermolecular forces, the higher the boiling point.

Let's analyze each compound:

a. CH₃CH₂CH₃ (propane): Propane is a nonpolar molecule, so it only exhibits London dispersion forces, which are relatively weak intermolecular forces. Therefore, it has a lower boiling point compared to compounds with stronger intermolecular forces.

b. CH₃OCH₃ (dimethyl ether): Dimethyl ether is a polar molecule, allowing for dipole-dipole interactions. However, it lacks the ability to form hydrogen bonds. While dipole-dipole interactions are stronger than London dispersion forces, they are weaker than hydrogen bonding.

c. CH₃OH (methanol): Methanol is a polar molecule capable of forming hydrogen bonds. Hydrogen bonding is a stronger intermolecular force compared to both dipole-dipole interactions and London dispersion forces. Methanol has a higher boiling point than dimethyl ether due to the presence of hydrogen bonding.

d. CH₃CHO (acetaldehyde): Acetaldehyde is a polar molecule with a carbonyl group (C=O), allowing for dipole-dipole interactions. However, it does not have hydrogen bonding. While dipole-dipole interactions are stronger than London dispersion forces, they are weaker than hydrogen bonding.

e. CH₃CN (acetonitrile): Acetonitrile is a polar molecule capable of dipole-dipole interactions. It does not have hydrogen bonding. Similar to acetaldehyde, it has a higher boiling point than propane due to dipole-dipole interactions but a lower boiling point than compounds capable of hydrogen bonding.

Considering the analysis above, the compound with the highest boiling point among the given options is c. CH₃OH (methanol) because it can form hydrogen bonds, which are stronger intermolecular forces compared to dipole-dipole interactions or London dispersion forces.

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The question should be:

Identify the compound with the highest boiling point. options: a. CH₃CH₂CH₃ b. CH₃OCH₃ c. CH₃OH d. CH₃CHO e. CH₃CN

100. 0 g sample of aluminum at 0. 00 °C absorbs 1379 J
of heat. What is is final temperature?

Answers

The final temperature of the 100 g sample of aluminum is 15.3°C after it absorbs 1379 J of heat at an initial temperature of 0.00°C and the specific heat capacity of aluminum is 0.903 J/g °C.

The specific heat capacity of aluminum is 0.903 J/g °C. As given in the question, 0.00°C is the initial temperature of 100 g sample of aluminum and it absorbs 1379 J of heat. We need to find out the final temperature of the sample of aluminum.

Here's how we can calculate it:

Given,Mass of aluminum, m = 100 g

Heat absorbed by the aluminum, Q = 1379 J

Temperature of aluminum, t1 = 0.00°C (initial temperature)

Specific heat capacity of aluminum, c = 0.903 J/g °C

Temperature of aluminum, t2 = ?Q = mc(t2 - t1)1379 = 100 × 0.903 × (t2 - 0.00)

On solving this equation, we get: t2 = 15.3°

, the final temperature of the 100 g sample of aluminum is 15.3°C.

: The final temperature of the 100 g sample of aluminum is 15.3°C after it absorbs 1379 J of heat at an initial temperature of 0.00°C and the specific heat capacity of aluminum is 0.903 J/g °C.

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To calculate the final temperature of a 100.0 g sample of aluminum that absorbs 1379 J of heat at 0.00 °C, we can use the specific heat capacity of aluminum to determine the amount of heat energy required to raise the temperature of the sample by one degree Celsius.

The specific heat capacity of aluminum is 0.90 J/g°C. This means that it takes 0.90 J of energy to raise the temperature of one gram of aluminum by one degree Celsius.
To calculate the amount of energy required to raise the temperature of the 100.0 g sample by one degree Celsius, we can use the following formula:
Energy = mass x specific heat capacity x change in temperature
Where:
Energy = 1379 J (the amount of energy absorbed by the aluminum)
Mass = 100.0 g
Specific heat capacity = 0.90 J/g°C
Change in temperature = final temperature - initial temperature
We can rearrange this formula to solve for the final temperature:
Final temperature = (energy / (mass x specific heat capacity)) + initial temperature
Substituting the values we know:
Final temperature = (1379 J / (100.0 g x 0.90 J/g°C)) + 0.00 °C
Final temperature = 15.32 °C
Therefore, the final temperature of the aluminum sample is 15.32 °C.

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draw the lewis structure for ccl4 in the window below and then decide if the molecule is polar or nonpolar.

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The Lewis structure for CCl4 is: In this molecule, the central atom is carbon which has 4 valence electrons and chlorine atoms have 7 valence electrons.

The total valence electrons in the molecule will be 32 (4*7 + 4*2).To get the Lewis structure of CCl4, first, we need to draw the atoms and connect them with a single bond. After that, we need to fill the valence electrons. It will be 4 electrons on each of the 4 chlorine atoms and 4 electrons on the carbon atom.Then we will add the remaining valence electrons, which will be 4 (8-4) electrons on the carbon atom to complete its octet.

The Lewis structure of CCl4 will have no lone pairs and it will be tetrahedral in shape with bond angles of 109.5 degrees. The molecule of CCl4 is nonpolar because the shape of the molecule is symmetrical and all the chlorine atoms are arranged in the corners of the tetrahedron with equal dipole moments. Thus, the polarities of all bonds in the molecule will cancel each other, making the molecule nonpolar. The polarity of the molecule depends on the distribution of charges in the molecule, which is determined by the molecular shape. If the dipole moments of all the bonds are not equal, then the molecule will be polar, and if the dipole moments are equal, then the molecule will be nonpolar.

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how much is the pressure change in kpa as the pipe expands? the density of water is 1000 kg/m3. enter a positive value for an increase in pressure, a negative value for a decrease. kpa

Answers

If we expand the pipe reaction, the pressure will decrease. The formula for calculating pressure change as a result of pipe expansion is:∆P = (E × α × ΔT × P) / (2(1 - v))

Let's go through each variable's meaning:∆P represents the pressure changeE represents the modulus of elasticityα represents the coefficient of thermal expansionΔT represents the temperature changeP represents the original pressurev represents Poisson's ratio.

The material's deformation under stressHere's the answer to the question:∆P = (2.1 x 10^5 × 1.4 x 10^-5 × 80 × 1 × 10^5) / (2(1 - 0.45))≈ 324 kPaThus, the pressure change is approximately 324 kPa.

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