Объяснение:
Mr(CH3COOH) = 12*2 + 1*4 + 16*2 = 60
W(C) = Ar(C) *n / Mr(CH3COOH) *100% = 12*2 / 60 *100% = 40%
W(O) = Ar(O) *n / Mr(CH3COOH) *100% = 16*2 / 60 *100% = 53%
W(H) = Ar(H) * n / Mr(CH3COOH) *100% = 1*4 / 60 *100% = 7%
