Final answer:
To find Ka for acetic acid and the pH of the solution, you can use the dissociation percentage and concentration of acetic acid in the solution.
Step-by-step explanation:
The Ka value of acetic acid, HC₂H₃O₂, can be determined using the equation:
Ka = [CH₂COO¯][H₂O+]/[CH₂COOH]
Given that acetic acid experiences 0.767% dissociation in a 0.300 M solution, we can calculate the concentration of acetic acid that is dissociated. Then, we can plug those values into the Ka equation to solve for Ka. As for the pH of the solution, we can use the equation pH = -log[H₃O⁺] to find the pH using the concentration of [H₃O⁺].