Calculate the relative concentration of phenol (ka=1.05x10^10) and phenolate ion in a solution with 0.05M total phenol (pH=7.5)

2 answers

I believe you've made a typo with Ka.
Call phenol just HP.
HP ==> H^+ + P^-
Ka = (H^+)(P^-)/(HP)
Convert pH to (H^+) and substitute that along with Ka value and solve for the ratio of HP/P
My exam is not fun soz not soz