Mr[Fe2O3] = Ar[Fe] * 2 + Ar[O] * 3 = 55.845 * 2 + 15.9994 * 3 = 159.6882 = 160
Mr[Fe(OH)3] = Ar[Fe] + Ar[O] * 3 + Ar[H] * 3 = 55.845 + 15.9994 * 3 + 1.00794 * 3 = 106.86702 = 107
Объяснение:
Mr[Fe2O3] = Ar[Fe] * 2 + Ar[O] * 3 = 55.845 * 2 + 15.9994 * 3 = 159.6882 = 160
Mr[Fe(OH)3] = Ar[Fe] + Ar[O] * 3 + Ar[H] * 3 = 55.845 + 15.9994 * 3 + 1.00794 * 3 = 106.86702 = 107
Объяснение: