Question

росчитайте массовую доли элементов в уксосной кислоте CH3COOH

Answer 1

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