Final answer:
To calculate the pH of a solution with potassium acetate and acetic acid, you need to use the dissociation constant (Ka) of acetic acid and the ICE approach. The pH can be determined using the formula: pH = -log[H3O+].
Step-by-step explanation:
The pH of a solution that contains a specific molar ratio of potassium acetate to acetic acid can be calculated using the dissociation constant (Ka) of acetic acid, which is 1.8 x 10-5. The pH can be determined using the ICE approach and the formula: pH = -log[H3O+]. For example, if the molar ratio is 0.100, the pH would be 2.87.