12 gm of alkaline earth metal gives 14 8 gm of its nitride atomic weight of that metal is - Chemistry - Basic Concepts in Chemistry

Question

12 gm of alkaline earth metal gives 14 8 gm of its nitride atomic
weight of that metal is???

Yasodharan · Accepted Answer

Dear Student,

The computation are expressed below,

given metal Malkaline metals →+2 oxidation stateNitrides →-3 oxidation stateMass of metal = 12 gmNitride amount = 14
8-12=2 8 gNo
 of moles of nitrides = 2 828=0
1Hence the moles of metal have to be 0
3 with 3:2 ratio so we get,0
3 moles = 12 g of metal1 mole = 40 g metalAtomic wt
 of metal = 40 gmol

Regards

12 gm of alkaline earth metal gives 14.8 gm of its nitride. atomic weight of that metal is???