Mr(CuSO4) = 63,5 + 32 + 16*4 = 159,5
Mr(AgNO3) = 108 + 14 + 16*3 = 170
Mr(CO) = 12 + 16 = 28
Mr(CO2) = 12 + 16*2 = 44
Mr(H3PO4) = 1*3 + 31 + 16*4 = 98
Mr(FeSO4) = 56 + 32 + 16*4 = 152
Mr(CuSO4) = 63,5 + 32 + 16*4 = 159,5
Mr(AgNO3) = 108 + 14 + 16*3 = 170
Mr(CO) = 12 + 16 = 28
Mr(CO2) = 12 + 16*2 = 44
Mr(H3PO4) = 1*3 + 31 + 16*4 = 98
Mr(FeSO4) = 56 + 32 + 16*4 = 152