Объяснение:
Mr(Cr(OH)3) = 52 + 16*3 + 1*3 = 103
W(Cr) = Ar(Cr) * n / Mr(Cr(OH)3 *100% = 52*1 / 103 *100% =50%
W(O) = Ar(O) *n / Mr(Cr(OH)3) *100% = 16*3 / 103 *100% = 47%
W(H) = Ar(H) *n / Mr(Cr(OH)3) *100% = 1*3 / 103 *100% = 3%
Объяснение:
Mr(Cr(OH)3) = 52 + 16*3 + 1*3 = 103
W(Cr) = Ar(Cr) * n / Mr(Cr(OH)3 *100% = 52*1 / 103 *100% =50%
W(O) = Ar(O) *n / Mr(Cr(OH)3) *100% = 16*3 / 103 *100% = 47%
W(H) = Ar(H) *n / Mr(Cr(OH)3) *100% = 1*3 / 103 *100% = 3%