Ka for CH3COOH is 1.8×10−5 and Kb for NH4OH is 1.8×10−5. The pH of ammonium acetate will be

Given that, Ka for CH3COOH=1.8×10−5 Kb for NH4OH=1.8×10−5Ammonium acetate is a salt of weak acid and weak base.For such salts,pH=7+pKa−pKb2 =7+−log1.8×10−5−−log1.8×10−52 =7+4.74−4.742=7.00