Answer to Question #180393 in General Chemistry for Chaihcai

Question

Compute the corresponding (OH^-) or (H₃O⁺) in each of the following conditions. Describe the condition as acidic or base.

1. (H₃O⁺) = 2.3 x 10^-9 M

2. (OH^-) = 7.4 x 10^-3 M

3. (H₃O⁺) = 8.7 x 10^-4 M

Answer 1

1. PH = -log (H₃O⁺) = -log 2.3 x 10^-9 M = 8.64 which is basic

2. POH = -log (OH^-) = -log 7.4 x 10^-3 M = 2.13 which is basic

3. PH = -log (H₃O⁺) = -log 8.7 x 10^-4 M = 3.06 which is acidic