Number of moles of Iodic acid is 1.59 moles and the number of moles of Water is 7.80 moles.
Iodic acid that can form when 373 g of iodine trichloride reacts with 140.5 g of water
The balanced chemical equation is,
2ICl₃ + 3H₂O → ICI + HIO₃ + 5HCl
Mass of Iodine trichloride is 373 g.
Mass of H₂O is 140.5 g.
Number of moles = mass / molar mass
molar mass of ICl3 is 233.5g/mole.
molar mass of water is 18g/mole.
Number of moles of ICl₃ = 373g / 233.5g/mole
= 1.59 moles
Number of moles of H₂O = 140.5 g / 18g/mole
= 7.80 moles
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How would the diagram change if the substance was water instead of rock salt
The diagram would look similar, but instead of the salt molecules, there would be water molecules. The water molecules would form hydrogen bonds, which would give the structure of the diagram a different shape.
What is the water molecules?A water molecule is a molecule composed of two hydrogen atoms and one oxygen atom, connected by covalent bonds. Water is essential to all known forms of life and is the most abundant liquid on Earth. It is also the most abundant molecule in the human body, making up 55-60% of our total body weight. Water molecules are polar, with the oxygen atom having a slightly negative charge and the hydrogen atoms having a slightly positive charge. This polarity enables water molecules to form hydrogen bonds with each other, creating a strong network of hydrogen bonds within the liquid. This network of hydrogen bonds is what gives water many of its unique properties, such as its high surface tension, high boiling point, and high heat capacity.
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_____ is a disaccharide important in the formation of alcoholic beverages.
Maltose is a disaccharide important in the formation of alcoholic beverages.
Maltose:
Maltose, also known as maltobiose or maltose, is a disaccharide formed from two glucose units linked by α(1 → 4) bonds. In isomeric isomaltose, the two glucose molecules are linked by an α(1 → 6) bond. Maltose is both members of the amylose homologous family, which is the major structural motif in starch. When beta-amylase breaks down starch, it removes two units of glucose at a time to form maltose. An example of this reaction can be found in germinating seeds, which is why malt is named after it. Unlike sucrose, it is a reducing sugar.
Also known as malt sugar, it is made up of two glucose molecules bonded together. It is an important disaccharide in the formation of alcoholic beverages.
Alcoholic Beverage:
Alcoholic beverages (also called alcoholic beverages, adult beverages, or beverages) are beverages that contain ethanol, a type of alcohol that acts like a drug and is made by fermenting grains, fruits, or other sources of sugar. Drinking alcoholic beverages, often referred to as "drinking", plays an important social role in many cultures. Most countries have laws regulating the production, sale and consumption of alcoholic beverages.
Regulations may require the alcohol percentage (alcohol or proof) to be displayed and warning labels to be used. Alcoholic beverages are legal in most countries around the world, although in some countries such activities are outright banned. The global liquor industry passed $1 trillion in 2018.
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Answer:
Ethanol is a disaccharide important in the formation of alcoholic beverages. Ethanol is produced by yeast during fermentation when sugar is converted to alcohol. This process involves the breaking down of carbohydrates, such as glucose and fructose, into simple sugars, which are then converted into ethanol.
please help tysm! this is a study island :)
Answer:
nevermind it was B got it right :)
Explanation:
have a good
an unknown compound contains only c , h , and o . combustion of 5.90 g of this compound produced 13.4 g co2 and 5.49 g h2o . what is the empirical formula of the unknown compound? insert subscripts as needed.
The unidentified compound's empirical formula is C9.45H5.13O1 (rounded to the nearest whole number). The simplest whole number ratio of the atoms in a compound is the empirical formula.
We must ascertain the relative proportions of each element in the combination in order to get the empirical formula. the volume of CO2 generated: 13.4 g of CO2 are created per mass of C. mass of H = (mass of H2O created) (2 mol H2O / 1 mol H2) (1 g/mol) = 5.49 g 2 / 18.015 g/mol = 0.610 g. the compound's overall bulk 5.90 g, 13.4 g, 0.610 g, and 1.89 g are the mass of O, total mass, mass of C, and mass of H, respectively. figuring out the empirical formula Create moles out of the masses: 13.4 g divided by 12.011 g/mol yields 1.117 mol of carbon. 0.606 mol is equal to 0.610 g/1.008 g/mol, or moles of H. Omoles are calculated as 1.89 g / 15.999 g/mol, or 0.118 mol. the most basic ratio of entire numbers: moles of C, moles of H, and moles of O are equal to 1.117, 0.606, and 0.118 mol/moles, respectively. The abbreviation is: C9.45H5.13O1. Hence, C9.45H5.13O1 is the empirical formula for the unidentified molecule.
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Can enzymes be reused for the same chemical reaction?
which set of three quantum numbers does not specify an orbital in the hydrogen atom?
The set of quantum numbers that does not specify an orbital in the hydrogen atom is n = 3; l = 3; m = -2.
The first or principle quantum number (n) represents the major energy level the electron is in. The second azimuthal quantum number (?) represents the type of sublevel the electron is in. The third quantum number, called the magnetic quantum number, described the spatial orientation of the orbital in the sublevel, The fourth quantum number, called the spin quantum number, described whether the electron was the first (+1/2) or second (-1/2) to enter the orbital.
Values for all quantum numbers derive from the principle quantum number.
n = energy level number (1,2,3,4,etc)
? = sublevel type, values are( 0, n-1)...3rd energy level has 0(s), 1(p), and 2(d) type sublevels
m = orbital, values are -?..0..+?...a 3d sublevel has (-2, -1, 0, +1, +2) type orbitals
s = +1/2 for first to enter orbital. -1/2 for second to enter orbital.
Since, range of L=(0,n-1),
and given n=3, L must be in (0,2).
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What is the effect of sample size on a melting point measurement?
The sample size of a substance can have a significant effect on the measurement of its melting point. Generally, the smaller the sample size, the less accurate and reproducible the melting point measurement will be.
One of the main reasons for this is that small samples are more substance susceptible to thermal gradients, which can cause the temperature to vary within the sample and result in an incorrect melting point. In a small sample, the heat from the heating source may not be evenly distributed, leading to localized melting and temperature changes that can result in an inaccurate melting point.Another factor that can affect the melting point of a small sample is the presence of impurities or contaminants. Impurities can act as nucleation sites, causing the sample to start melting at a lower temperature, or they can alter the thermal properties of the sample, leading to a shift in the melting point.
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AgCl is found to have 78.1% ionic character, and its gas phase dipole moment is 11.5 D. What is the distance between the Ag and Cl atoms in gaseous AgCl in picometers?
Since the dipole moment of gaseous AgCl is 11.5 D and the ionic character of AgCl is 78.1%, we can assume that the magnitude of the partial charge is 0.781.
What is magnitude ?Magnitude is a measure of the size, strength, or intensity of something. It can refer to physical objects, such as earthquakes, or abstract concepts, such as numbers or emotions. In physical sciences, magnitude is typically used to measure an object's size, intensity, or speed. In mathematics, magnitude is often used to indicate the size of a number, usually expressed as the absolute value. Magnitude is also used to describe the size of an emotion or feeling, such as happiness or sadness.
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Calculate the freezing point of a solution containing 1.25 g of benzene (78 g/mol) in 100 g of chloroform.
∆T = Km Kfp chloroform = 4.68 oC/m Freezing point chloroform = -63.5 oC
The freezing point of a solution is -63.575 °C
The freezing point depression of a solution can be calculated by using the equation:
∆T = Km • Kfp
Where ∆T is the freezing point depression of the solution, Km is the molar concentration of the solute and Kfp is the freezing point depression constant for the solvent.
For this problem, the molar concentration of the solute (benzene) is
[tex]\frac{ 1.25 g}{78 g/mol }\\\\= 0.0161 mol/kg.[/tex]
The freezing point depression constant for chloroform is 4.68 °C/m.
Therefore, the freezing point depression of the solution is:
∆T = 0.0161 mol/kg • 4.68 °C/m = 0.075 °C
The freezing point of the solution is then calculated by subtracting the freezing point depression from the freezing point of the pure solvent:
Freezing point of solution = -63.5 °C - 0.075 °C = -63.575 °C
Therefore , freezing point of a solution is -63.575 °C
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if 20.00 g of a compound reacts completely with 30.00 g of another compound in a combination reaction, how many grams of product are formed?
In a compound reaction, 80 grams of the product are created when 20 grams of one substance completely react with 30 grams of another.
Assuming we have the balanced chemical equation for the reaction, we can use stoichiometry to determine the amount of product formed.
let's say the balanced chemical equation for the reaction between the two compounds is: A + B -> C
where A and B are the two compounds and C is the product.
We can use the coefficients in the balanced equation to determine the mole ratio of A to B to C.
Let's assume that the mole ratio of A to B to C is 1:2:3.
Let's assume that the molar mass of compound A is 40 g/mol and the molar mass of compound B is 60 g/mol. Using these values, we can calculate the number of moles of each compound as:
moles of A = 20.00 g / 40 g/mol = 0.50 mol
moles of B = 30.00 g / 60 g/mol = 0.50 mol
Since the mole ratio of A to B to C is 1:2:3, we can see that 0.50 moles of A react with 1.00 mole of B to produce 1.50 moles of C.
To convert the moles of C to grams, we can use the molar mass of C. Let's assume that the molar mass of C is 80 g/mol. Using this value, we can calculate the mass of C formed as:
mass of C = 1.50 mol x 80 g/mol = 120 g
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Question 8 When a reaction is properly refluxing, where should you see the vapors from the heated mixture? O Vapors should be about 1/3 up the condenser height. No visible vapors should be formed. O Vapors should be escaping from the top of the condenser. Vapors should be contained to the reaction flask.
When a reaction is properly refluxing, vapors from the heated mixture should be Vapors should be escaping from the top of the condenser about 1/3 up the condenser height.
When a reaction is being refluxed, vapor should escape from the top of the condenser. It should be visible, rising approximately one-third of the way up the condenser. It is important to ensure that the vapor is contained within the reaction flask and that no visible vapors are formed outside of the flask.
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Which one of the following amino acids is MOST likely to participate in hydrogen bonding with water?
valine
alanine
leucine
asparagine
phenylalanine
Asparagine is the amino acid most likely to form a hydrogen bond with water (Asn).
The side chain of asparagine has an amide functional group (-CONH-), which can serve as both a hydrogen bond donor and acceptor. As a result, asparagine is more hydrophilic (loves water) than the other amino acids listed because it may interact with water molecules via hydrogen bonding. The amino acids valine (Val), leucine (Leu), and phenylalanine (Phe) are hydrophobic (averse to water) because they lack functional groups on their side chains that can form hydrogen bonds with water. The side chain of the amino acid alanine (Ala) has a methyl functional group (-CH3) that is hydrophobic and does not engage in hydrogen bonding. As a result, asparagine is the amino acid that has the highest likelihood of forming a hydrogen bond with water.
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which best describes the pka of a weak acid? choose one: a. pka values change over the course of a titration. b. the pka value depends on the concentration of the molecule present. c. the pka value depends on the ph. d. the pka is an intrinsic property of a molecule in question and depends on how tightly bound the acidic h is.
For a weak acid, the [tex]pk_a[/tex] value is an intrinsic property of the molecule and depends on how tightly bound the [tex][H^+][/tex] is.
In chemistry, an intrinsic property is a property of a substance that is independent of the amount of the substance present. Such properties are mainly dependent on chemical composition and structure.
The [tex]pk_a[/tex] value is the negative base 10 logarithm of the acid dissociation constant ([tex]k_a[/tex]) of a solution.
[tex]pk_a=-log_{10}(k_a)[/tex].
As the acid dissociation constant ([tex]k_a[/tex]) of a solution is an intrinsic property, hence the [tex]pk_a[/tex] value is also an intrinsic property.
The acid dissociation constant ([tex]k_a[/tex]) of a solution depends on the fact that if the acidic hydrogen [tex][H^+][/tex] is tightly bounded, then the value of [tex]k_a[/tex] will be decreased, which leads to the increase in the value of [tex]pk_a[/tex].
Hence, for a weak acid, the [tex]pk_a[/tex] value is an intrinsic property of the molecule and depends on how tightly bound the [tex][H^+][/tex] is.
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which experimental procedure(s) must scientists use to determine vmax and km of an enzymatic reaction using the michaelis-menten model? they must ensure that:
To determine the Vmax and Km of an enzymatic reaction using the Michaelis-Menten model, scientists must maintain constant enzyme and reaction times.
monitor the product concentration at different substrate concentrations, and use controls to ensure that observed changes are due to enzymatic activity
1. They only take into account the rate of the first reaction for each substrate concentration.
2. The first substrate concentrations tested are all significantly higher than the initial enzyme concentrations.
— The concentration of substrate at which 12Vmax occurs is Km.
Three underlying premises underlie the Michaelis-Menten equation:
The substrate concentration [S] during the reaction is constant according to the free ligand assumption.
2. The steady-state hypothesis postulates that the amount of ES remains constant during the reaction, allowing the rate of product creation to stay constant.
3. According to the irreversibility assumption, the reaction only moves in one direction and the product cannot be changed back into the substrate.
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Which of Newton's laws can be expressed with the equation = mā?
A. Newton's first law
B. Newton's third law
C. Newton's law of universal gravitation
D. Newton's second law
SUBMIT
Answer:
D. Newton's second law
Explanation:
not chem but anatomy. Which of the following is the chronological
order of events that occur when a person is
trying to keep their balance?
You retain balance when the weight and the reaction forces are balanced.
What chronological events helps a person to keep balance?Your question is incomplete but I think you want to know how a person can retain balance.
We know that we can only be keep balance when the forces that are acting on the person is balanced. The implication of it is that there are no unbalanced forces that are acting on the person.
The two forces that act on you when you stand are the weight and the reaction force. If these two forces are balanced then you can be able to retain your balance.
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7. how many total moles of atp would be made (by both substrate-level phosphorylation and reduced cofactors) if 16 moles of glucose are oxidized by glycolysis and subsequently by the citric acid cycle? (1 mol nadh : 2.5 mol atp and 1 mol fadh2 : 1.5 mol atp) a) 412 moles d) 512 moles b) 160 moles e) 612 moles c) 192 moles
The final product would be 512 moles.
The outcome from one glucose throughout the state of glycol shall correspond to that of a T P to N A ph, that will become equivalent to two in addition to twice times 2.5, or in simpler words 7 18 p. Therefore, fro each one the following 16 moles, if 780 be multiplied by 16, it will amount to 1 12 http.
Consequently, each mole of glucose would be transformed into N A D P H via the process of oxidation, while the ATP seems to be the sum of two times 2.5 which is equivalent to five. Also, for calculating for 16 more, it would be 5 times 16 resulting in 80. Eventually, a total of 6 and a th, two FATH 2 and a TPS, within the cycle of citric acid for a mole glucose byproduct. So, the final sum will be 20 multiplied by 16, which will result in 320 http. Hence, adding them all together, the ultimate total will be 512 80 p.
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glassware should always be dry when using a grignard reagent. if the reagent below (phenylmagnesium bromide) reacts with any water present, what neutral organic product will be formed?
A Grignard reagent called phenylmagnesium bromide will combine with water to create the neutral organic compound benzene. Grignard reagents are highly reactive with water and other protic solvents, which causes this reaction.
Bromophenylmagnesium, sometimes referred to as phenylmagnesium bromide, is an organometallic substance having the formula C6H5MgBr. It belongs to the family of Grignard reagents, a class of popularly used organometallic compounds in organic synthesis. A white crystalline solid, phenylmagnesium bromide is strongly reactive with a wide range of electrophiles, such as carbonyl compounds, esters, and acid chlorides. It is frequently utilised in the synthesis of a variety of medicines, agrochemicals, and natural products as well as in the production of carbon-carbon bonds in organic chemistry. But it needs to be managed carefully and cautiously because of how reactive it is.
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radium phosphate reacts with sulfuric acid to form radium sulfate and phosphoric acid. what is the coefficient for sulfuric acid when the equation is balanced using the lowest, whole-numbered coefficients?
After balancing the chemical equation, we have 4 sulfate groups on each side, so the equation is balanced. Therefore, the coefficient for sulfuric acid is 4.
The balanced chemical equation for the reaction between radium phosphate and sulfuric acid is:
Ra3(PO4)2 + 3 H2SO4 → 3 RaSO4 + 2 H3PO4
To balance the equation, we need to ensure that the number of atoms of each element is the same on both sides. We can start by balancing the phosphorus (P) and sulfur (S) atoms, which appear only in one compound on each side. We can see that there are 2 P atoms and 8 O atoms on the left side, and 2 P atoms and 12 O atoms on the right side, so we need to add 4 H3PO4 on the left side to balance the P and O atoms. This gives us:
Ra3(PO4)2 + 3 H2SO4 → 3 RaSO4 + 4 H3PO4
Now we have to balance the hydrogen (H) and the sulfate (SO4) atoms. On the left side, we have 12 H atoms (from the 4 H3PO4) and 6 SO4 groups (from the 3 H2SO4), while on the right side we have 8 H atoms (from the 4 H3PO4) and 3 SO4 groups (from the 3 RaSO4). To balance the hydrogen atoms, we need to add 4 H2SO4 on the left side, which gives us:
Ra3(PO4)2 + 4 H2SO4 → 3 RaSO4 + 4 H3PO4
Now we have 4 sulfate groups on each side, so the equation is balanced. Therefore, the coefficient for sulfuric acid is 4.
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Given the balanced equation:
2Al(s) + 6H+ (aq) -----> 2Al^3+ (aq) + 3H2(g)
What is the total number of moles of electrons gained by H+ (aq) when 2 moles of Al(s) are completely reacted?
1) 6
2) 2
3) 3
4) 12
The total number of moles of electrons transferred from Al to H⁺ is 6
The given reaction can be split up into two half-reactions as follows:
2 Al (s) → 2 Al³⁺ (aq) + 6 e⁻
6 H⁺ (aq) + 6 e⁻ → 3 H₂ (g)
From the first half-reaction, it is clear that 2 moles of Al give out 6 moles of electrons to become Al³⁺.
From the second half reaction, it is clear that these 6 moles of electrons are accepted by H⁺ to become H₂ gas.
What is a half-reaction?
A half reaction is either the oxidation or reduction reaction component of a redox reaction. A half reaction is obtained by considering the change in oxidation states of individual substances involved in the redox reaction
How does half-reaction work?
In general, the half-reactions are first balanced by atoms separately. Electrons are included in the half-reactions. These are then balanced so that the number of electrons lost is equal to the number of electrons gained. Finally, the two half-reactions are added back together.
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Answer:
3
Explanation:
because i did this when i was a kid
In the ionic compounds LiF, NaCl, KBr, and RbI, the measured cation–anion distances are 2.01 Å (Li–F), 2.82 Å (Na-Cl), 3.30 Å (K–Br), and 3.67 Å (Rb–I), respectively.
1. Predict the cation–anion distance using the values of ionic radii given in Figure 7.7, on page 257 in the textbook.
2. Calculate the difference between the experimentally measured ion–ion distances and the ones predicted from Figure 7.7. Assuming we have an accuracy of 0.04 Å in the measurement, would you say that the two sets of ion–ion distances are the same or not? Why, or why not?
3. What estimates of the cation–anion distance would you obtain for these four compounds using bonding atomic radii? Are these estimates as accurate as the estimates using ionic radii? Explain your answer.
Please explain the part on the 4% accuracy.
The predicated cation anion distance for LiF, NaCL, KBr, RbI is 2.09Å, 2.83 Å, 3.34 Å, 3.72 Å respectively. The difference between the experimentally measured ion–ion distances and the ones predicted are 0.08 Å, 0.01 Å, 0.04 Å, 0.05 Å
The cation anion distance using the values of iconic radii are as follows:
i) LiF
the ionic radii of cation, Li⁺ = 0.90 Å
the ionic radii of anion, F⁻ = 1.19 Å
the predicated cation anion distance = 0.90Å + 1.19Å = 2.09Å,
ii) NaCl
the ionic radii of cation, Na⁺ = 1.16 Å
the ionic radii of anion, Cl⁻ = 1.67Å
the predicated cation anion distance = 1.16 Å + 1.67 Å = 2.83 Å,
iii) KBr
the ionic radii of cation, K⁺ = 1.52 Å
the ionic radii of anion, Br⁻ = 1.82 Å
the predicated cation anion distance = 1.52 Å + 1.82 Å = 3.34 Å,
iv) RbI
the ionic radii of cation, Rb⁺ = 1.66 Å
the ionic radii of anion, I⁻ = 2.06 Å
the predicated cation anion distance = 1.66 Å + 2.06 Å = 3.72 Å,
i)LiF:
Experimentally measured cation-anion distance = 2.01 Å,
predicted cation anion (LiF) distance = 2.09 Å
the difference = 2.09 Å - 2.01 Å = 0.08 Å
ii)NaCl
Experimentally measured cation-anion distance = 2.82 Å,
predicted cation anion (NaCL) distance = 2.83 Å
the difference = 2.83 Å - 2.82 Å = 0.01 Å
iii)KBr
Experimentally measured cation-anion distance = 3.30 Å,
predicted cation anion (KBr) distance = 3.34 Å
the difference = 3.34 Å - 3.30 Å = 0.04 Å
iv) RbI
Experimentally measured cation-anion distance = 3.67 Å,
predicted cation anion (RbI) distance = 3.72 Å
the difference = 3.72 Å - 3.67 Å = 0.05 Å
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What is the molarity of lithium ions?
The molarity of lithium particles in a 1.50 M arrangement of Li3PO4 is 4.50 M.
The most widely recognized method for communicating arrangement fixation is molarity (M), which is characterized as how much solute in moles is partitioned by the volume of arrangement in liters: M = moles of solute/liters of arrangement.
Molality is the moles of particles in an arrangement partitioned by kilograms of dissolvable. For instance, in the event that you disintegrate 1.0 moles of NaCl in 1.0 kilogram of arrangement, you will have 1.0 molal centralization of sodium chloride.
In science, the most regularly involved unit for molarity is the number of moles per liter, having the unit image mol/L or mol/dm3 in the SI unit. An answer with a centralization of 1 mol/L is supposed to be 1 molar, ordinarily assigned as 1 M.
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Place in order the steps involved for flavors on the tongue to create a perception in the brain.-Chemical substances in food disolve in saliva.-Taste receptors are stimulated.-Signals are sent to the thalamus.-The frontal lobe perceives taste.
1. Chemical substances in food dissolve in saliva. 2. Taste receptors are stimulated. 3. Signals are sent to the thalamus. 4. The frontal lobe perceives taste.
What is substances ?Substances can be defined as materials or substances that are composed of one type of atom or molecule. They are made up of atoms and molecules that are combined together in a specific way and can be observed in the physical world. Substances can be either natural or man-made and can be either solid, liquid, or gas. They have a unique set of properties such as boiling point, melting point, and density, which helps to describe them.
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if an excess of reducing agent is added, how many moles of diphenylmethanol can be produced from one mole of benzophenone?
Only, one mole of diphenylmethanol can be produced from one mole of benzophenone.
The reaction of benzophenone with a reducing agent (such as sodium borohydride) can produce diphenylmethanol according to the following balanced chemical equation:
C₁₃H₁₀O + 2NaBH₄ + 2H₂O → C₁₃H₁₄O + 2NaBO₂ + 4H₂
From the balanced equation, we can see that one mole of benzophenone (C₁₃H₁₀O) reacts with two moles of NaBH₄ and two moles of water to produce one mole of diphenylmethanol (C₁₃H₁₄O) and two moles of NaBO₂ and four moles of hydrogen gas (H₂).
If an excess of reducing agent is added, it means that there is more than enough NaBH₄ to react with all of the benzophenone present. In this case, the limiting reagent is benzophenone, and the amount of diphenylmethanol that can be produced is determined by the amount of benzophenone available.
Therefore, from one mole of benzophenone, we can produce one mole of diphenylmethanol when an excess of reducing agent is added.
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Why does each element have its own unique atomic line spectrum, when all atoms have energy levels labeled 1s,2s,2p,3s,etc.?
In quantum mechanics, an atomic orbital is a mathematical function that describes the wave-like behavior of either one electron or a pair of electrons in an atom.
This function can be used to calculate the probability of finding any electron of an atom in any specific region around the atom's nucleus. The term, atomic orbital, may also refer to the physical region or space where the electron can be calculated to be present, as defined by the particular mathematical form of the orbital.
Each orbital in an atom is characterized by a unique set of values of the three quantum numbers n, ℓ, and m, which respectively correspond to the electron's energy, angular momentum, and an angular momentum vector component (the magnetic quantum number). Each such orbital can be occupied by a maximum of two electrons, each with its own spin quantum number s. The simple names s orbital, p orbital, d orbital and f orbital refer to orbitals with angular momentum quantum number ℓ = 0, 1, 2 and 3respectively. These names, together with the value of n, are used to describe the electron configurations of atoms. They are derived from the description by early spectroscopists of certain series of alkali metal spectroscopic lines as sharp, principal, diffuse, and fundamental. Orbitals for ℓ > 3 continue alphabetically, omitting j (g, h, i, k, …) because some languages do not distinguish between the letters "i" and "j".
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a chef plans to mix vinegar with italian dressing. the italian dressing contains vinegar. the chef wants to make milliliters of a mixture that contains vinegar. how much vinegar and how much italian dressing should she use?
chef should use 478.04 ml of Italian dressing and 21.96 ml of vinegar to make 500 ml of a mixture that contains 2% vinegar
To solve this , we need to use the concept of the concentration of the solution.
Let's assume that the concentration of vinegar in the Italian dressing is C1 and that the chef wants to make V milliliters of a mixture that contains vinegar.
Let's also assume that the concentration of vinegar in the final mixture is C2.
To find out how much vinegar and Italian dressing the chef should use, we can use the following formula:
C1V1 + C2V2 = C2V
where V1 is the volume of the Italian dressing that the chef should use, and V2 is the volume of vinegar that the chef should use.
We know that the concentration of vinegar in the Italian dressing is C1, so the concentration of the other ingredients in the Italian dressing is 1 - C1.
Let's assume that the chef wants to use x milliliters of Italian dressing and y milliliters of vinegar.Using the formula above, we can set up the following equation:
C1 * x + 1 * y = C2 * V
x + y = V
We have two equations and two unknowns, so we can solve for x and y.
y = (C2 - C1) * V / (1 - C1)
x = V - y
Substituting the values of C1, C2, and V, we get:
y = (0.05 - 0.02) * 500 / (1 - 0.02) = 21.96 ml
x = 500 - 21.96 = 478.04 ml
Therefore, the chef should use 478.04 ml of Italian dressing and 21.96 ml of vinegar to make 500 ml of a mixture that contains 2% vinegar.
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Select the gas with the highest average kinetic energy per mole at 298 K.a. carbon dioxideb. all have the same kinetic energyc. hydrogend. watere. oxygen
The gas with the highest average kinetic energy per mole at 298 K are Carbon dioxide, Hydrogen, water and Oxygen. Hence, option B is correct answer.
The relationship between a gas's temperature and molar kinetic energy is proportional, and the proportionality constant is 32 times the gas constant R. The connection between molar kinetic energy and temperature is seen in the video below below. Half of each gas molecule's mass and the square of its RMS speed are multiplied to create the average kinetic energy of a gas molecule. In terms of math, it looks like this: M stands for mass.
The RMS velocity is vrms. It is determined by multiplying your total energy consumption (in kilowatt-hours) by your maximum electrical use (in kilowatts), then dividing the result by the number of days in the month and the sum of the daily hours. The outcome is a ratio between 0 and 1.06.
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what is the highest oxidation state for nb?
The highest oxidation state for Nb (niobium) is +5.
Oxidation is the loss of electrons in a chemical reaction. For the element niobium (Nb), the highest oxidation state is +5. This is because niobium has five valence electrons in its outermost shell, which it can lose to form a +5 oxidation state.
This is commonly seen in compounds such as Nb₂O₅ (niobium pentoxide) and NbF₅ (niobium pentafluoride). That being said, it is important to note that niobium can also form lower oxidation states, such as oxidation state +3 and +4. However, the +5 state is the highest possible for niobium.
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oil is insoluble in water. this is because of the differences in the polarity of the liquids, one is non polar and the other is polar. however, oil drops can be suspended in water to form a colloidal solution by adding --------------------------.
Oil can be suspended in water to form a colloidal solution by adding an emulsifier.
An emulsifier is a substance that helps to mix two otherwise immiscible liquids, such as oil and water, by reducing the surface tension between them. Common emulsifiers for oil and water include soap, detergent, and surfactant molecules. These molecules have one end that is attracted to the oil and one end that is attracted to the water, allowing them to hold the oil and water together in a stable mixture.
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If an atom/ion has 3 protons, 4 neutrons and 4 electrons, is it a neutral atom or an ion? If it is an ion what is its charge?
The ion is a lithium ion with a charge of -1, often written as Li-.
What is an ion?
An ion is an atom or molecule that has a non-zero net electrical charge due to the loss or gain of one or more electrons. Ions can be positively charged (cations), when they lose electrons, or negatively charged (anions), when they gain electrons.
The number of protons in an atom/ion determines its atomic number and its identity.
In this case, the number of protons is 3, which corresponds to the element lithium (Li) in its neutral state. However, the number of electrons is 4, which means that this is an ion of lithium.
To determine the charge of the ion, we need to compare the number of protons (positive charges) to the number of electrons (negative charges). In this case, there are 3 protons (3+) and 4 electrons (4-), so the ion has a charge of -1.
Therefore, the ion is a lithium ion with a charge of -1, often written as Li-.
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