Объяснение:
Mr(NaOH) = 23 + 16+1 = 40
W(Na) = Ar(Na) *n / Mr(NaOH) *100% = 23 *1 / 40 *100% =57%
W(O) = Ar(O) *n / Mr(NaOH) *100% = 16*1 / 40 *100% = 40%
W(H) = Ar(H) *n / Mr(NaOH) *100% = 1*1 / 40 *100% = 3%
Объяснение:
Mr(NaOH) = 23 + 16+1 = 40
W(Na) = Ar(Na) *n / Mr(NaOH) *100% = 23 *1 / 40 *100% =57%
W(O) = Ar(O) *n / Mr(NaOH) *100% = 16*1 / 40 *100% = 40%
W(H) = Ar(H) *n / Mr(NaOH) *100% = 1*1 / 40 *100% = 3%