Weak acids only partially dissociate in aqueous solution.CH3COOH(aq) ⇌ H+(aq) + CH3COO-(aq).In general for a weak acid HAHA(aq) ⇌ H+ + A-(A stands for anion). This means that the acid dissociation constant at equilibrium is equal to
[H+] = [A-] as they both originated from the same molecule
Given that pH = -log10[H+], the pH of a weak acid is given by
[H+] = [A-] as they both originated from the same moleculeGiven that pH = -log10[H+], the pH of a weak acid is given by