Ar(Cu) = 63,5
Mr(CaSO4) = 40 + 32 + 16*4 = 136
Mr(CaCO3) = 40 + 12 + 16*4 = 100
Mr((CuOH)2CO3 = 63,5*2 + 16*2 + 1*2 + 12 + 16*3 = 221
Ar(Cu) = 63,5
Mr(CaSO4) = 40 + 32 + 16*4 = 136
Mr(CaCO3) = 40 + 12 + 16*4 = 100
Mr((CuOH)2CO3 = 63,5*2 + 16*2 + 1*2 + 12 + 16*3 = 221