Question

5) Of the following acids, ________ is a strong acid.

A) HNO2 B) H2CO3 C) HNO3 D) HClO

6) Calculate the hydrogen ion concentration in a solution of iced tea with lemon having a pH of

2.87.

A) 2.9 x 10–2 M

C) 1.3 x 10–3 M

7) Which one of the following is the weakest acid? A) HF (Ka = 6.8 × 10-4)

B) HClO (Ka = 3.0 × 10-8)

C) HNO2 (Ka = 4.5 × 10-4)

D) HCN (Ka = 4.9 × 10-10)

B) 5.7 x 10–2 M D) 2.9 x 10–3 M

1

8) The Ka of hypochlorous acid (HClO) is 3.0 × 10-8 at . What is the percent ionization of hypochlorous acid in a aqueous solution of HClO at

A) 4.5 × 10-8 B) 14 C) 2.1 × 10-5 D) 0.14

Answer 1