Мамова часка mg оаш2

Question

Мамова часка mg оаш2

Answer 1

Mr(Mg(OH)2)=24+2*16+2*1=58
W(Mg)=24/58=0.41=41%
W(O)=32/58=0.55=55%
W(H)=2/58=0.04=4%