Mr(Na2SO4) =22.98976928 * 2 + 32.065 + 15.9994 * 4 = 142.04213856
Mr(CaCl2) =40.078 + 35.453 * 2 = 110.984
Mr(Cu(PO4)2) =63.546 + 30.973762 * 2 + 15.9994 * 8 = 253.488724
Объяснение:
Mr(Na2SO4) =22.98976928 * 2 + 32.065 + 15.9994 * 4 = 142.04213856
Mr(CaCl2) =40.078 + 35.453 * 2 = 110.984
Mr(Cu(PO4)2) =63.546 + 30.973762 * 2 + 15.9994 * 8 = 253.488724
Объяснение: