calculate the molar mass of the following substance.
SO3 ____________
Al2O3 ____________
MgCl2 ____________
ZnCl2 ____________
NH4Cl ____________
FeCl2 ____________
Al2(SO4)3 ____________
Ca3(PO4)2 ____________
C6H12O6 ____________
CuSO4•5H2O ____________