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3 years ago

Write the mechanism of the reaction of methyl benzoate to form methyl 2-nitrobenzoate.

Chemistry

2 answers:

Galina-37 [17]3 years ago

8 0

The question is partially incorrect, because nitration of methyl benzoate results in generation of methyl 3-nitrobenzoate, and not methyl 2-benzoate.

This a because of the present of ester group, which deactivated benzene ring at ortho and para position. Due to this, the electrophile (NO2+) attackes on meta position.

The detailed mechanism is attached below.

mylen [45]3 years ago

3 0

Answer:

See the attached picture.

Explanation:

Hello,

Nitration of alkyl benzenes is carried out adding both nitric and sulfuric acid to the organic reactant in order to promote the inclusion of the nitro group into the ring. Nonetheless, due to the steric hindrance such inclusion is not at the second carbon but at the third one. The addition of nitric acid promotes the attaching of the nitro group and the sulfuric acid shifts the equilibrium towards the nitration is it ionizes the nitric acid to nitronium ion NO₂⁺. The mechanism is shown on the attached picture.

Best regards.

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You can answer this question by getting the atomic number and atomic mass of Oxygen from a periodic table. There you will find that the atomic number is 8, that means, by definition, that it has 8 protons. This is, because atomic number is defined as the number of protons of an element. Given that the atom is neutral, that implies that the atoms have the same number of electrons than protons. So you already know that the oxygen atoms has 8 protons and 8 electrons. The number of neutrons can vary, which is what defines the isotopes. Given that the atomic mass of oxygen is 15.999, that means that most atoms of oxygen has 8 neutrons (8 protons +8 neutrons = 16 atomic mass). But you can not be sure that a specific atom of oxygen has 8 neutrons, nevertheless, given that the other options are discarded (because they do not have 8 protons and 8 electrons), the only correct answer is the option A. 8 protons, 8 electrons, and 8 neutrons.

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3 years ago

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Answer:

Explanation:

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3 years ago

Which member of each pair is more soluble in diethyl ether? Why? (c) MgBr₂(s) or CH₃CH₂MgBr(s)

White raven [17]

CH3CH2MgBr is more soluble in diethyl ether .

We know that polar solvent dissolve in polar solvent very perfectly . as diethyl ether is a polar solvent so it have dipole -dipole interaction .

Hence the compound with similar interaction can dissolve in diethyl ether .

Here , MgBr2 is an ionic compound . there is ion-ion interactions occurs which is not similar to dipole -dipole interaction in diethyl ether .hence the solubility of MgBr2 in diethyl ether is less .

but in case of CH3CH2MgBr there are both polar and nonpolar end .CH3CH2 is the nonpolar end and MgBr is the polar end .

thus with the nonpolar end solute interact using depression forces and with polar end solute interact using dipole-dipole interaction . so CH3CH2MgBr is more soluble .

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1 year ago

The orbit closest to the nucleus has ___________ energy.

deff fn [24]

Answer:

inonic bonds with cavalent bonds

Explanation:

ionic bonds

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3 years ago

The volume of the ideal gas in the container is 9 m3. What would the volume be if four more blocks were placed on top of the lid

7nadin3 [17]

Answer;
4.5 m³

Solution:
The statement says that two blocks are present on a lid of a container with volume of 9 m³. The mass of lid is equal to the mass of two blocks. It means that initially there are four blocks (or four atm pressure) upon 9 m³ volume.

After that four more blocks are placed on the lid. Means the pressure is increased from 4 atm to 8 atm (2 atm of lid, 2 atm of old blocks, 4 atm of new four blocks).

So, Data generated is,

P₁ = 4 atm

V₁ = 9 m³

P₂ = 8 atm

V₂ = ?

According to Boyle's Law,

P₁ V₁ = P₂ V₂

Solving for V₂,
V₂ = P₁ V₁ / P₂

Putting values,
V₂ = (4 atm × 9 m³) ÷ 8 atm

V₂ = 4.5 m³

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3 years ago