The pH of 1.2% (w/v) aqueous solution of CH3COOH at 250C is     (pKa = 4.7)

Concentration of CH3COOH solution is 1.2% w/vIn 1000 ml of solution,mCH3COOH=12g(OR)nCH3COOH=1260=0.2M = 0.2PH of a weak acid solution is given as,PH=12PKa-logC0=12[4.7-log2+1] PH=12[5.7-0.30] PH=2.7