i was just wondering, if "the pH of a solution of a 0.5M weak acid HA is 2.5. To calculate the percent dissociation of this solution, could i first convert the pH 2.5 to a concentration of 0.00316M, and then go 0.00316M/0.5M times 100 to get the anwer 0.63%?

thanx for helping:)