Question #197e4

1 Answer
Nov 4, 2016

Calculate the concentration of H+ and then take the negative base-10 logarithm to get the pH.

Explanation:

The balanced reaction is
CH3COOH(aq)H+(aq)+CH3COO(aq)

If 5% of the acid ionizes, then the concentration of H+ is
[H+]=2.0M×0.05=0.1M

The ph is then

pH = log[H+]=log(0.1)=1.0