They produce $$\text{H}^+$$ ions in solution.

$$\text{pH} + \text{pOH} = 14$$

$$\text{pOH} = -\log(2.5 \times 10$$^{-4}$$)$$

Question 1

Which of the following is a property unique to acids, but not bases?

Accepted Answer

They produce $$	ext{H}^+$$ ions in solution.

Question 2

According to the Bronsted-Lowry definition, which statement is correct?

Accepted Answer

An acid is a proton donor.

Question 3

What ion is produced when a base ionizes in water?

Accepted Answer

$$	ext{OH}^-$$

Question 4

Which of the following chemicals is classified as a base?

Accepted Answer

$$	ext{NaOH}$$

Question 5

Which test can be used to distinguish between an acid and a base?

Accepted Answer

Using red litmus paper.

Question 6

What is the concentration unit commonly used in acid-base chemistry?

Accepted Answer

Molarity

Question 7

A solution has a pH of 2.59. What is the $$[	ext{H}_3	ext{O}^+]$$ concentration?

Accepted Answer

Question 8

Which solution will have the highest electrical conductivity?

Accepted Answer

0.10 M NaOH

Question 9

If you dilute an acid by a factor of 10, what happens to the pH?

Accepted Answer

The pH increases by 1 unit.

Question 10

Which of the following is true for a strong acid compared to a weak acid?

Accepted Answer

A strong acid ionizes completely in water.

Question 11

What is the relationship between pH and pOH in aqueous solution at 25°C?

Accepted Answer

$$	ext{pH} + 	ext{pOH} = 14$$

Question 12

Given a solution with $$[	ext{OH}^-] = 2.5 	imes 10$$^{-4}$$ M, what is the pOH?

Accepted Answer

$$	ext{pOH} = -\log(2.5 	imes 10$$^{-4}$$)$$

Question 13

Which scenario best illustrates Le Chatelier’s principle?

Accepted Answer

Reducing products shifts the equilibrium to the right.

Question 14

What does the equilibrium constant $$K$$ represent?

Accepted Answer

The ratio of products to reactants at equilibrium.

Question 15

Which of the following is an Arrhenius acid?

Accepted Answer

$$	ext{HCl}$$

Question 16

A titration is performed with 25.0 mL of 0.10 M HCl and 0.10 M NaOH. How many moles of HCl are present?

Accepted Answer

$$0.0025$$ moles

Question 17

Which of the following statements is true about the ionization of acetic acid and hydrochloric acid?

Accepted Answer

Hydrochloric acid ionizes more than acetic acid.

Question 18

If the pH of a solution is 9.33, what is the $$[	ext{H}_3	ext{O}^+]$$ concentration?

Accepted Answer

$$4.68 	imes 10$$^{-10}$$ M

Question 19

Which of the following is a Bronsted-Lowry base?

Accepted Answer

$$	ext{NH}_3$$

Acids, Bases, and Equilibrium Study Guide – General Chemistry

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