See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

Milli. moles of NaOH = 30  0.2 = 6 m.m m. m of CH3COOH = 50  0.2 = 10 m.m Now: 3 3 2 CH COOH NaOH CH COONa N O 10 6 0 10 6 0 6 6 0 6        5 6 pH log(2 10 ) log 4