NX is produced by the following step of reactions M + X2⟶MX2⟶MX2+X2⟶M3X8 M3X8+N2CO3⟶NX +CO2+M3O4 How much M (metal) is consumed to produce 206 gm of NX. (Take at wt. of M = 56, N = 23, X = 80)
42 g
M+X2⟶MX2
n mole nmole
3MX2+X2⟶M3X8
nmole n8 mole
M3X8+N2CO3⟶8NX+4CO2+M3O4
n3 8n3 mole
No. of moles of NX to be produced =206103=2mole
8n3 ⟹ 34
Mass of M = 34×56 =42gm