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%