Question #2f9e0

1 Answer
Dec 5, 2017

Volume of Mixture#rArr#16.8L

Explanation:

2 gms of He#rArr(2)/(4)=# 0.5mol
7 gms of #N_2(g)rArr(7)/(28)=# 0.25mol

Total moles of the Mixture#rArr#0.5+0.25#=#0.75mol

An ideal gas at STP has 22.4 Litres per 1 mol of the gas.

0.75 mol of mixture gas occupies 22.4#xx#0.75L#rArr# 16.8Litres