What is the Molecular Formula for a Compound Containing Nitrogen and Hydrogen?

[kevinf]

i have a question. the problem is

a compound contains only nitrogen and hydrogen and is 87.4% nitrogen by mass. a gaseous sample of the compound has a density of .977g/L at 710. torr and 100. degree celsius. what is the molecular compound.

i have tried it a little by making the mass of nitrogen 87.4 g. and found out the mass of hydrogen by subtracting 87.4 by 100. then i used the mass of each to find out the volume of each. then i used the ideal gas law for both nitrogen and hydrogen. this is all i did so far. i am not even sure if what i did is right. can you guys help me

 

[GCT]

Hello kevinf and welcome to PF. first use the ideal gas formula

PV=nRT

(n/V)=P/RT

n=total moles of the Nitrogen and Hydrogen gas

Found out how to convert the "total concentration to average density."