Question 1

Which of the following statements best describes the difference between a strong acid and a weak acid in aqueous solution?

Accepted Answer

A strong acid completely dissociates in water, while a weak acid only partially dissociates.

Question 2

Which of the following is the correct IUPAC name for the compound with the structure $$CH_3CH_2CH_2OH$$?

Accepted Answer

Propanol

Question 3

A solution is prepared by dissolving 5.85 g of sodium chloride ($$NaCl) in $$enough water to make 1.00 L of solution. What is the molarity of the solution? ($$M_{NaCl} = 58.5 g/$$mol)

Accepted Answer

$$0.10 M$$

Question 4

Which of the following compounds is an example of a tertiary amine?

Accepted Answer

N,N-dimethylethylamine

Question 5

Which of the following statements about aromatic compounds is correct?

Accepted Answer

Aromatic compounds contain conjugated pi electrons in a cyclic structure that follows Hückel's rule ($$4n+2 pi $$electrons).

Question 6

Which of the following is the correct order of acidity (from strongest to weakest) for the following compounds: acetic acid, ethanol, phenol?

Accepted Answer

Acetic acid \u003e Phenol \u003e Ethanol

Question 7

A buffer solution is prepared by mixing equal concentrations of acetic acid ($$CH_3COOH) $$and sodium acetate ($$CH_3COONa). $$What will happen to the pH if a small amount of hydrochloric acid ($$HCl) is $$added?

Accepted Answer

The pH will decrease slightly, but the buffer will resist a large change.

Question 8

Which of the following best describes the Markovnikov rule in the addition of $$HBr to $$propene?

Accepted Answer

The hydrogen atom adds to the carbon with more hydrogens, and the bromine adds to the carbon with fewer hydrogens.

Question 9

Which of the following is a correct statement about optical isomers?

Accepted Answer

They are non-superimposable mirror images of each other.

Question 10

A patient is given an intravenous solution containing $$0.9\%$$ $$NaCl. $$What is the osmolarity of this solution? ($$M_{NaCl} = 58.5 g/$$mol)

Accepted Answer

$$0.308$$ osmol/L$

Question 11

Which of the following reactions is an example of nucleophilic addition?

Accepted Answer

Addition of $$H_2O to an $$aldehyde to form a hydrate

Question 12

Which of the following statements about carboxylic acids is correct?

Accepted Answer

Carboxylic acids can form hydrogen bonds, leading to higher boiling points than similar-sized alcohols.

Question 13

Which of the following is the correct structure for the isomer 2-butanol?

Accepted Answer

$$CH_3CH(OH)CH_2CH_3$$

Question 14

Which of the following statements about the reaction of alcohols with carboxylic acids is correct?

Accepted Answer

The reaction produces an ester and water.

Question 15

Which of the following compounds will react most rapidly with bromine in an electrophilic aromatic substitution reaction?

Accepted Answer

Phenol

General Chemistry Study Guide for Medical Admissions

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