Structura:
Formula
Raport atomic
Raport masic
Masa molara
1)
Al2(SO4)3
2:3:12
54:96:128 = 27:48:64
MAl2(SO4)3 = 2MAl + 3MS + 12MO = 54 + 96 + 128 = 278
2)
Al2O3
2:3
54:48 = 27:24
MAl2O3 = 2MAl + 2MO = 54 + 48 = 102
3)
Fe(OH)3
1:3:3
56:48:3
MFe(OH)3 = MFe + 3MO + 3MH = 56 + 48 + 3 = 107
4)
KClO4
1:1:4
39:35,5:64
MKClO4 = MK + MCl + 4MO = 39 + 35,5 + 64 = 138,5
5)
Zn(NO3)2
1:2:6
65:28:96
MZn(NO3)2 = MZn + 2MN + 6MO = 65 + 28 + 96 = 189
6)
Ca3(PO4)2
3:2:8
120:62:128 = 60:31:64
MCa3(PO4)2 = 3MCa + 2MP + 8MO = 120 + 62 + 128 = 310
