What is the correct iupac name of CH3-CH2-CH2CHO ?

Answers

Answer 1

the correct IUPAC name of the compound is 1-Butanal.

What are IUPAC names?

It is a system of naming organic compounds based on the longest carbon-to-carbon single bonds. It does not matter whether these longest chains are continuous or in a ring.

Thus, when the compound with the chemical formula, CH3-CH2-CH2CHO is considered. The longest carbon-to-carbon chain is 4. The 1st carbon carries a functional group known as an aldehyde.

Aldehydes are equipped with the carbonyl group and have the general formula R−CH=O. They are also sometimes referred to as formyl.

Aldehydes are named after their parent alkane chains with a slight modification. The 'e' is replaced with 'al'

The aldehyde in this case has four carbons. This means that the parent alkane is Butane. Therefore, the name of the compound will be 1-Butanal.

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Related Questions

Prform the following operation and express the answer in scientific notation 6.0 x 10^3-2.310^3

Answers

The value 6.0 x 10^3- 2.3 × 10^3 in scientific notation is 3.7 × 10^3.

What is scientific notation?

Scientific notation is a way to write very large or very small numbers so that they are easier to read and work with.

You express a number as the product of a number greater than or equal to 1 but less than 10 and an integral power of 10 .

Why it is used?

There are two reasons to use scientific notation.

The first is to reveal honest uncertainty in experimental measurements. The second is to express very large or very small numbers so they are easier to read.

Given,

= 6.0 x 10^3- 2.3 × 10^3

= (6.0 - 2.3) × 10^3

= 3.7 × 10^3

Thus, we find that the value 6.0 x 10^3- 2.3 × 10^3 in scientific notation is 3.7 × 10^3.

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At the triple point on a phase diagram, what state(s) of matter exist?
Group of answer choices

A. Liquid ONLY

B. None of the 3 states of matter (Solid, Liquid or Gas) exist at this point.

C. Solid, Liquid and Gas

D. Solid and Liquid

Answers

At the triple point on a phase diagram, the state(s) of matter exist is option C: Solid, Liquid and Gas.

What states of matter exist at the triple point?

In a state of pressure and temperature of a given triple point, all three phases (known to be the solid, liquid and gas state) are seen to often exist in equilibrium.

Note that the triple point is said to be one that stands for  the lowest pressure in which a liquid phase can live in equilibrium with that of the solid or vapor.

Hence, the statement of At the triple point on a phase diagram, the state(s) of matter exist is option C: Solid, Liquid and Gas is true.

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Anyone know this please and thank you

Answers

Answer:

The correct answer is a hypothesis.

Hydrochloric Acid would best be described as a:
Group of answer choices

A. Arrhenius, BrØnsted-Lowrey and Lewis Base

B. Arrhenius, BrØnsted-Lowrey and Lewis Acid

C. BrØnsted-Lowrey and Lewis Acid

D. Arrhenius and Lewis Acid

Answers

Hydrochloric acid would best be described as a Arrhenius acid, Lewis acid and Brønsted-Lowry acid (option B).

What is Arrhenius, Brønsted-Lowry acid?

Arrhenius acid is any substance that dissociates in an aqueous solution to form hydrogen ions (H+) or proton.

On the other hand, a Brønsted-Lowry acid is any substance that can donate a proton or hydrogen ion to another substance.

Hydrochloric acid (HCl) can be categorized as an Arrhenius acid and Brønsted-Lowry acid because it has the ability to donate H+ and increase the hydrogen ion concentration of an aqueous solution.

Also, Lewis cids are the chemical substances that are able to accept electron pairs.

Therefore, Hydrochloric acid would best be described as a Arrhenius acid, Lewis acid and Brønsted-Lowry acid.

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which water boils can be related to the weather.

Answers

Quick boiling of water can be related to the hot weather because in high temperature water changes from liquid state to gaseous state.

Which water boils can be related to the weather?

Water boils quickly when the weather is hot and warm because hot weather has high temperature which leads to the quick evaporation of the water. In hot weather, the liquid water changes into vapor state very quickly as compared to cold temperature.

So we can conclude that Quick boiling of water can be related to the hot weather because in high temperature water changes from liquid state to gaseous state.

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#44) Draw the complete chemical equation for the hydrohalogenation reaction of 1-
pentene by HBr. You must show the structures in your reaction; you may NOT use
molecular formulas!

Answers

Hydrohalogenation Reaction:

The substitution of hydrogen and halide levels across a double bond takes place. The halide group is connected to the carbon with more substituents. The product will affect by the presence of peroxide

What is the hydrohalogenation reply with example?

Ethene is a symmetrical alkene having two carbon atoms. It reacts with HBr in the presence of CCl4, producing bromoethane or ethyl bromide (CH3CH2Br). Propene is an unsaturated alkene consisting of a three-carbon chain with two carbon particles on either side of the double bond.

What is the hydrohalogenation reaction with example?

Ethene is a symmetrical alkene including two carbon atoms. It reacts with HBr in the presence of CCl4, producing bromoethane or ethyl bromide (CH3CH2Br). Propene is an unsaturated alkene consisting of a three-carbon chain with two carbon atoms on either flank of the double bond.

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Which of the following IS a part of the Kinetic Molecular Theory (KMT)?
Group of answer choices

A. Molecules in a gas move slowly.

B. Molecules in a gas move rapidly.

C. Molecules have HUGE volumes.

D. Molecules have predictable motions.

Answers

The statement that is a part of Kinetic Molecular Theory (KMT) is Molecules in a gas move rapidly. That is option B.

What is Kinetic Molecular Theory (KMT)?

Kinetic Molecular Theory (KMT) is defined as the theory that describes the physical behaviour of gases.

The Kinetic Molecular Theory (KMT) include the following:

Ideal gas molecules are constantly moving;

They have negligible volume;

They have negligible intermolecular forces;

They undergo perfectly elastic collisions; and

They have an average kinetic energy proportional to the ideal gas's absolute temperature.

Therefore, the statement that is a part of Kinetic Molecular Theory (KMT) is Molecules in a gas move rapidly.

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Is HF the most polar among covalent bonds?

Answers

Answer:

No.

Explanation:

HI is more polar than HF

A 1.239 g sample contains only vitamin C (C6H8O6) and sucralose (C12H19Cl3O8). When the sample is dissolved in water to a total volume of 46.1 mL, the osmotic pressure of the solution is 3.06 atm at 293 K. What is the mass percent of vitamin C and sucralose in the sample?

Answers

The mass percentage of vitamin C is 68.3%and the mass percentage of sucralose is 31.7%.

Osmotic pressure (π) = iCRT

Where,

Π= Osmotic pressure = 3.06 atm

I = Van't hoff factor = 1(molecular solution)

C = concentration (in mol/L)

R = gas constant = 0.082 Latm/Kmol

T = temperature = 293K

C can also be written as

Number of moles/ Volume = n/V

Given, volume = 46.1 mL

It can be written as

Π= nRT/V

n= πV/RT

n = 3.06× 0.0461/(0.082×293)

n = 0.0058moles

Mass of vitamin C = a

Mass of sucralose = b

Mass of given sample = 1.239g

Hence,

a + b = 1.239

b = 1.239-a

Molar mass of vitamin C = 176g/mol

Molar mass of sucralose = 398g/mol

Total number of moles = number of moles of vitamin C + number of moles of sucralose

0.0058= a/176 + (1.239-a) /398

0.0058× 176× 398 = 398a + (1.239-a) 176

406.27 = 398a + 218.064 -176a

188.206 = 222a

a = 0.847g

And b = 0.392g

Mass percent of vitamin C = (0.847/1.239) × 100

= 68.3%

Mass percent of sucralose = 100- 78.5

= 31.7%

Thus, we find that the mass percentage of vitamin C is 68.3 %and the mass percentage of sucralose is 31.7%.

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Identify the correct statement regarding the strength of chemical bonds.

A) Strong bonds occur with high temperature and weak bonds with low temperature.
B) If the bond energy between atoms is very weak then the bond between the atoms is strong.
C) Strong bonds from with large atoms and weak bonds with small atoms.
D) If the bond energy between atoms is very high the the bond between the atoms is strong.

Answers

If the bond energy between atoms is very high the the bond between the atoms is strong.

What are chemical bonds?

Chemical bonds are formed wen two atoms are combined together. The chemical bonds are responsible for holding the atoms together. These chemical bonds could be ionic or covalent in nature. Coordinate bonds have hybrid behavior between ionic and covalent bond types.

We know that the bond energy refers to the energy that must be supplied in order to break the bonds. A high bond energy implies that it takes a whole lot of energy to break the bond. If it takes a lot of energy to break the bond, then the bond must be a strong bond which holds the two atoms together in the compound. Hence, if the bond energy between atoms is very high the the bond between the atoms is strong.

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A mixture of 0.600 mol of bromine and 1.600 mol of iodine is placed into a rigid 1.000-L container at 350°C.
Br2(g) + I2(g) ↔ 2IBr(g)
When the mixture has come to equilibrium, the concentration of iodine monobromide is
1.190 M. What is the equilibrium constant for this reaction at 350°C? Show step-by step explanation.
A) 3.55 × 10^3
B) 1.24
C) 1.47
D) 282
E) 325

Answers

The equilibrium constant for this reaction at 350°C is D. 282.

Equilibrium constant

A dynamic chemical system approaches chemical equilibrium constant when enough time has passed and its composition no longer exhibits any discernible propensity to change further. The equilibrium constant of a chemical reaction is the value of its reaction quotient in this condition. The equilibrium constant is independent of the initial analytical concentrations of the reactant and product species in the mixture for a specific set of reaction conditions. Understanding equilibrium constants is crucial for comprehending many chemical systems as well as biological processes like the transport of oxygen by hemoglobin in the blood and the maintenance of acid-base homeostasis in the human body. There are many different kinds of equilibrium constants, including stability constants, formation constants, binding constants, association constants, and dissociation constants.

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A mixture of 0.600 mol of bromine and 1.600 mol of iodine is placed into a rigid 1.000-L container at 350°C.

Br2(g) + I2(g) ↔ 2IBr(g)

When the mixture has come to equilibrium, the concentration of iodine monobromide is

1.190 M. What is the equilibrium constant for this reaction at 350°C? Show step-by step explanation.

A) 3.55 × 10^3

B) 1.24

C) 1.47

D) 282

E) 325

is Cu^2+ + 2Br^- --> Cu + Br2 a spontaneous or non-spontaneous redox reaction?

Answers

The reaction above is a spontaneous reaction

Cu^2+ + 2Br^- --> Cu + Br2

What is spontaneous redox reaction?

A spontaneous redox reaction is a special type of redox reaction which involves the release of energy where the electrons are transferred from from an anode to the cathode

General spontaneous redox reactions is found mostly in electrochemical cells

So therefore, the reaction above is a spontaneous reaction.

Cu^2+ + 2Br^- --> Cu + Br2

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Oliver and Mike put some ice into a container and heat it .​

Answers

Answer:

See below

Explanation:

From the graph: initial temp = -10 ° C

    melting occurs at 0 ° C   (constant temp process)

     at '2'   the ice is melting.....going from a solid to a liquid at a constant temperature  

How many neutrons does an atom of Uranium 240?
Group of answer choices

A. 148

B. 146

C. 92

D. 240

Answers

Answer:

Number of neutrons is equal to 148.

12.2 g of N₂ gas at 1132 torr and 91°C has a volume of

Answers

Answer:

8.73 L

Explanation:

First, you need to convert grams to moles using the molar mass.

Molar Mass (N₂): 2(14.009 g/mol)

Molar Mass (N₂): 28.018 g/mol

12.2 grams N₂               1 mole
----------------------  x  ------------------------  =  0.435 moles N₂
                                 28.018 grams

To find the volume, you need to use the Ideal Gas Law:

PV = nRT

In this equation,

-----> P = pressure (torr)

-----> V = volume (L)

-----> n = moles

-----> R = Ideal Gas constant (62.36 torr*L/mol*K)

-----> T = temperature (K)

After converting the temperature from Celsius to Kelvin, you can plug the given values into the equation.

P = 1132 torr                                   R = 62.36 torr*L/mol*K

V = ? L                                            T = 91 °C + 273.15 = 364.15 K

n = 0.435 moles

PV = nRT

(1132 torr)V = (0.435 moles)(62.36 torr*L/mol*K)(364.15 K)

(1132 torr)V = 9888.015

V = 8.73 L

An ion of a single pure element always has an oxication number of
A. magnitude equal to its atomic number
OB. 1
OC.0
OD. None of these

Answers

Answer:

C. zero 0

Explanation:

single elements will always possess an oxication number of zero

<
A 83.5 g sample of a nonelectrolyte is dissolved in 291.7 g of water.
The solution is determined to have a boiling point of 102.3 °C. What is
the molar mass of the compound? (Kb for water is 0.510 °C/m).

Answers

The molar mass of the compound is = 1.42g/ mol

Calculation of compound molar mass

∆Tb = kB × molarity

∆Tb = 102.3°C

Kb = 0.510 °C/m

Molarity= electrolyte mass × water solubility/ Mw× mass of water.

That is,

102.3°C= 0.51× 83.5×1000/Mw × 291.7

Make Mw the subject of formula,

Therefore,

Mw = 0.51 × 83.5×1000/ 102.3 × 291.7

Mw= 42,585/29,840.91

Mw= 1.42g/mol

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Classify the following aqueous solutions as: strong acid, weak acid, neutral, weak base, or strong base.

vinegar pH 3.2


battery acid pH 0.5


shampoo pH 7.0


ammonia pH 11.1

Answers

Vinegar pH 3.2: Weak acid

Battery acid pH 0.5: Strong acid

Shampoo pH 7.0: Neutral

Ammonia pH 11.1 Strong base

What is Ką for H3PO4(aq) = H(aq) + H₂PO4 (aq)?
OA. K₂ [H₂PO4][H*][H₂PO4]
=
OB. K₂ =
O C. K₂ =
O D. Ka
=
[H₂PO4]
[H*][H₂PO4]
[H*][H₂PO4]
[H₂PO4]
[H3PO4]
[H+][H₂PO4]

Answers

Answer:

C.) [tex]K_a = \frac{[H^+][H_2PO_4^-]}{[H_3PO_4]}[/tex]

Explanation:

The general structure for a Ka expression is:

[tex]K_a = \frac{[H^+][A^-]}{[HA]}[/tex]

In this expression,

-----> Ka = equilibrium constant

-----> [A⁻] = base

-----> [HA] = acid

The products are in the numerator and the reactants are in the denominator. In this case, H₃PO₄ serves as an acid and H₂PO₄⁻ serves as a base.

As such, the equilibrium expression is:

[tex]K_a = \frac{[H^+][H_2PO_4^-]}{[H_3PO_4]}[/tex]

According to chemical equilibrium, the Ka for the given chemical equation is Ka=[H⁺][H₂PO₄⁻]/[H₃PO₄].

What is chemical equilibrium?

Chemical equilibrium is defined as the condition which arises during the course of a reversible chemical reaction with no net change in amount of reactants and products.A reversible chemical reaction is the one wherein the products as soon as they are formed react together to produce back the reactants.

At equilibrium, the two opposing reactions which take place take place at equal rates and there is no net change in amount of the substances which are involved in the chemical reaction.At equilibrium, the reaction is considered to be complete . Conditions which are required for equilibrium are given by quantitative formulation.

Factors which affect chemical equilibrium are change in concentration , change in pressure and temperature and presence of catalyst.

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How many grams of water will be produced if you start with 4.0 grams of hydrogen and an excess of oxygen given the following balanced chemical equation?

2H2 + O2 → 2H2O

Group of answer choices

A. 32.0 grams

B. 36.0 grams

C. 54.0 grams

D. 18.0 grams

Answers

Taking into account the reaction stoichiometry, 36 grams of water (option B) will be produced if you start with 4.0 grams of hydrogen and an excess of oxygen.

Reaction stoichiometry

In first place, the balanced reaction is:

2 H₂+ O₂  → 2 H₂O

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

H₂: 2 moles O₂: 1 moleH₂O: 2 moles

The molar mass of the compounds is:

H₂: 2 g/moleO₂: 32 g/moleH₂O: 18 g/mole

Then, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

H₂: 2 mole× 2 g/mole= 4 gramsO₂: 1 mole× 32 g/mole= 32 gramsH₂O: 2 moles× 18 g/mole= 36 grams

Mass of H₂O formed

You can see that by reaction stoichiometry 4 grams of H₂ form 36 grams of H₂O.

Summary

In summary, 36 grams of water (option B) will be produced if you start with 4.0 grams of hydrogen and an excess of oxygen.

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4. The positive Biuret test indicates the presence of ....... bond in proteins.

Answers

The positive Biuret test indicates the presence of Peptide bond in proteins.

How to do Biuret test for proteins?

Follow these simple steps if you want to know practically:

Step 1: Take a 3 clean and dry test tubes.

Step 2: Add 1/2 ml of test solution to one test tube, albumin for another, and distilled water to third test tube.

Step 3: Add 3-4 drops of Biuret reagent to each test tube.

Step 4: Shake wee and let it be for 4-5 minutes.

Step 5: Observe the colour changes.

Peptide bonds are (C - N ) bonds present in proteins. The Biuret reagent colour is Pale blue and when you test for protein, if the solution contain protein, when you add the Biuret reagent it will turns to Purple. If there is no protein then the colour remains same.

The Biuret reagent is made up of Hydrated copper sulfate, sodium hydroxide, and Rochelle salt (sodium-potassium tartrate).

Peptide bond is also referred to as Amide bonds, it is formed between the Nitrogen atom of one amino acid and the Carbonyl carbon of second amino acid.

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10. A 10.9ml sample of gas is collected over water at 21.0 C and 1.89 atm , what volume would you have at 25.0 C and 2.25 atm

Answers

Considering the combined law equation, you would have a volume of 9.28 mL at 25.0 C and 2.25 atm.

Boyle's law

Boyle's law establishes the relationship between the pressure and the volume of a gas when the temperature is constant.

This law says that volume is inversely proportional to pressure: if pressure increases, volume decreases, while if pressure decreases, volume increases.

Mathematically, Boyle's law states that the multiplication of pressure by volume is constant:

P×V= k

Charles's law

Charles's law establishes the relationship between the temperature and the volume of a gas when the pressure is constant.

This law says that the volume is directly proportional to the temperature of the gas: if the temperature increases, the volume of the gas increases, while if the temperature of the gas decreases, the volume decreases.

Mathematically, Charles' law states that the ratio of volume to temperature is constant:

[tex]\frac{V}{T}=k[/tex]

Gay-Lussac's law

Gay-Lussac's law establishes the relationship between the temperature and pressure of a gas when the volume is constant.

This law says that the pressure of the gas is directly proportional to its temperature: if the temperature increases, the pressure increases, while if the temperature of the gas decreases, the pressure decreases.

Mathematically, Gay-Lussac's law states that the ratio of pressure to temperature is constant:

[tex]\frac{P}{T}=k[/tex]

Combined law equation

Combined law equation is the combination of three gas laws called Boyle's, Charlie's and Gay-Lusac's law:

[tex]\frac{PV}{T}=k[/tex]

Considering an initial state 1 and a final state 2, the following holds:

[tex]\frac{P1V1}{T1}=\frac{P2V2}{T2}[/tex]

Volume in this case

In this case, you know:

P1= 1.89 atmV1= 10.9 mLT1= 21 C= 294 K (being 0 C= 273 K)P2= 2.25 atmV2= ?T2= 25 C= 298 K

Replacing in the combined law equation:

[tex]\frac{1.89 atmx10.9 mL}{294 K}=\frac{2.25 atmxV2}{298 K}[/tex]

Solving:

[tex]\frac{1.89 atmx10.9 mL}{294 K}\frac{298K}{2.25 atm} =V2[/tex]

9.28 mL= V2

Finally, you would have a volume of 9.28 mL at 25.0 C and 2.25 atm.

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If an electron falls from the n = 2 to the n = 1 energy levels in a Hydrogen atom what wavelength of light is emitted?
Group of answer choices

A. 122 nm

B. 1024 nm

C. 97 nm

D. 103 nm

Answers

A. The wavelength of light that is emitted is 122 nm.

What is wavelength?

Wavelength is the distance between identical points (adjacent crests) in the adjacent cycles of a waveform signal propagated in space or along a wire.

Wavelength of light is emitted

When an electron falls from the n = 2 to the n = 1 energy levels in a Hydrogen atom, the wavelength of light is emitted is calculated as follows;

¹/λ = R(1/n₁²  -  1/n₂²)

¹/λ = 109677(1/1 - 1/2²)

¹/λ = 109677(1 - ¹/₄)

¹/λ = 82,257.25

λ = 1/8,225.25

λ = 1.22 x 10⁻⁵ cm

λ = 1.22 x 10⁻⁷ m

λ = 122  nm

Thus, the wavelength of light that is emitted is 122 nm.

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Which is always going to be the highest ionization energy?
Group of answer choices

A. 2nd Ionization Energy

B. 1st Ionization energy

C. All Ionization energies are equal.

D. 3rd Ionization Energy

Answers

Answer: I think it's B.

Explanation:

The second ionization energy is always the highest ionization energy. Ionization energy is the energy required to remove an electron from an atom in its gaseous state. Hence the correct option is A.

The first ionization energy is the energy required to remove the first electron from an atom. The second ionization energy is the energy required to remove the second electron from an atom that has already lost one electron.

The first ionization energy is always lower than the second ionization energy because the first electron is easier to remove because it is not as strongly attracted to the nucleus.

Once one electron has been removed, the remaining electrons are more strongly attracted to the nucleus, making it more difficult to remove the second electron.

Therefore, option A) 2nd Ionization Energy is correct.

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