Question 1

Which of the following best describes a Bronsted-Lowry acid?

Accepted Answer

A substance that donates a proton ($$H^+) in $$solution.

Question 2

Which of the following is the correct formula for hydrochloric acid?

Accepted Answer

$$HCl$$

Question 3

What is the conjugate base of $$H_2O$$ when it acts as an acid?

Accepted Answer

$$OH^-$$

Question 4

Which of the following pairs represents a conjugate acid-base pair?

Accepted Answer

$$HCl$$ and $$Cl^-$$

Question 5

A solution has a $$[H^+]$$ concentration of $$1 	imes 10$$^{-4}$$ M. What is its pH?

Accepted Answer

pH = 4

Question 6

Which of the following statements about strong acids is correct?

Accepted Answer

Strong acids completely dissociate in water.

Question 7

If a solution has a pH of 2, which of the following best describes the solution?

Accepted Answer

It is acidic.

Question 8

Which of the following is a property of bases?

Accepted Answer

They feel slippery.

Question 9

What is the result of mixing hydrochloric acid ($$HCl) $$with sodium hydroxide ($$NaOH$$)?

Accepted Answer

A neutral solution of sodium chloride and water is formed.

Question 10

Which equation correctly represents the neutralization reaction between $$HCl$$ and $$NaOH$$?

Accepted Answer

$$HCl + NaOH \rightarrow NaCl + H_2O$$

Question 11

Which of the following best describes the effect of increasing temperature on the rate of a chemical reaction?

Accepted Answer

The rate increases because more particles have enough energy to react.

Question 12

According to Collision Theory, which factor does NOT affect the rate of a chemical reaction?

Accepted Answer

Color of the reactants

Question 13

Which statement best describes Le Chatelier's Principle?

Accepted Answer

A system at equilibrium will shift to counteract any change imposed on it.

Question 14

If the concentration of reactants is increased in a system at equilibrium, what will happen according to Le Chatelier's Principle?

Accepted Answer

The system will shift toward the products.

Question 15

A patient is given a solution with a pH of 8. What is the $$[OH^-]$$ concentration?

Accepted Answer

$$1 	imes 10$$^{-6}$$ M$

Question 16

Which of the following is a real-world example of a buffer solution?

Accepted Answer

Blood

Question 17

Which of the following is NOT a property of acids?

Accepted Answer

They turn litmus paper blue.

Question 18

A chemical reaction is observed to speed up when a catalyst is added. Which statement best explains this?

Accepted Answer

The catalyst provides an alternative pathway with lower activation energy.

Question 19

Which of the following equations represents the calculation of pH?

Accepted Answer

$$pH = -\log [H^+]$$

Question 20

A student mixes acetic acid ($$CH_3COOH) $$with sodium acetate ($$CH_3COONa). $$What is the resulting solution?

Accepted Answer

A buffer solution

Acids, Bases, Kinetics, and Equilibrium: Study Guide for Introductory Chemistry

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