Chapter 18 Review

The substance H₂SO₃ is considered?

• a weak acid

• a strong acid

• a strong base

• a weak base

• a neutral compound

The substance HCl is considered

• a weak acid

• a weak base

• a strong acid

• a strong base

• a neutral compound

The substance Ba(OH)2 is considered

• a weak acid

• a strong acid

• a weak base

• a strong base

• a neutral compound

Which of the following is the strongest acid?

• HBrO

• HBrO₂

• HClO₂

• HClO₃

• HIO

Which of the following is the strongest base

• CH₃NH₂

• NaNO₃

• B(OH)₃

• Al(OH)₃

• LiOH

Which of the following acids have the lowest pH?

• 0.1 M HBO, pK_a = 2.43

• 0.1 M HA, pK_a = 4.55

• 0.1 M HMO, pK_a = 8.23

• 0.1 M HST, pK_a = 11.89

What is the pH of a 0.20 M HCl solution?

• less than 0

• 0.70

• 1.61

• 12.39

• 13.30

What is the pH of a 0.050 M LiOH solution

• less than 1.0

• 1.30

• 3.00

• 11.00

• 12.70

What is the [OH-] for a solution that has an [H₃O+] = 2.35 x 10 ^-3 M?

• 4.26 x 10^-5 M

• 2.35 x 10^-11 M

• 4.26 x 10^-12 M

• 2.35 x 10^-17 M

• none of the above

Select the pair of substances in which an acid is listed followed by its conjugate base.

• H⁺, HCl

• NH₃, NH₄⁺

• HPO₄^2-, H₂PO₄^-

• HCO₃^-, CO₃^2-

• CH₃COOH, CH₃COOH₂⁺