What is the pH when 0.600 moles of potassium benzoate (KC7H5O2) has been added to 1.50 of water?
1 Answer
Sep 9, 2016
The pH is 8.90.
Explanation:
Our first task is to calculate the concentration of the potassium benzoate,
The reaction is
For benzoic acid,
For the benzoate ion, as above,
Now, we can set up an ICE table to calculate the concentrations.
∴
The equation reduces to
∴