Ch 14 15 hw

What is the pH of a 0.050 M HBr solution?

• 1.12
• 0.89
• 3.00
• 1.30
• None of these choices are correct

The substance HClO₄ is considered

• a strong base
• a weak base
• a strong acid
• a weak acid
• a neutral compound

Select the pair where an acid is followed by its conjugate base

• HCO₃^-, CO₃^2-
• CH₃COOH, CH₃COOH₂⁺
• H⁺, HCl
• NH₃, NH₄⁺
• HPO₄^2-, H₂PO₄^-

Which, if any, of the following acids is strong?

• carbonic
• phosphoric
• water
• acetic
• none of these choices are correct

Which of the following is the strongest acid?

• HF
• HI
• H₂SO₃
• CH₃COOH
• H₃PO₄

Select the pair that is NOT a conjugate acid-base pair

• H₂S, S^2-
• H₃O⁺, H₂O
• H₂SO₄, HSO₄^-
• NH₃, NH₂^-
• HNO₂, NO₂^-

What is the pH of a 0.20 M HCl solution?

• 12.39
• 13.30
• < 0
• 0.70
• 1.61