Jawapan

2015-10-08T20:12:26+08:00
CH3COOH + NaOH → NaCH3OO + H2O
mol CH3COOH = MV÷1000
mol = 0.1 ( 50 ) ÷ 1000
      = 0.005 mol

mol =jisim (m)  ÷ jisim molar (NaOH)
0.005 = m ÷ 40
m = 0.005 × 40
m = 0.2 g (nilai y)