Найдите относительную молекулярную массу:
1) Li2CO3
2) KNO
3) Na3PO4
4) CaO
5) K2CO3
6) Al2(SO4)3
1) Li2CO3
2) KNO
3) Na3PO4
4) CaO
5) K2CO3
6) Al2(SO4)3
More Questions From This User See All
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Mr( Li2CO3) = 2× Ar (Li)+ 1× Ar(C) + 3× Ar ( O)= 2×6+12+3×16= 72
Mr ( KNO) = 39+14+16= 69
Mr ( Na3PO4) = 3×23+31+4×16= 164
Mr( CaO)= 40+16= 56
Mr( K2CO3)= 2×39+12+2×16= 122
Mr ( Al2(SO4)3) = 2×27+3(32+4×16)= 342