The percentage composition of a gas is nitrogen:82.35 and hydrogen 17.64 Find the emperical formula of the gas

Dear Student,

Since it is a ratio of mass, so we have to divide each by their respective molecular weights.
For N, amount = 82.35/14 = 5.88
For H, amount = 17.64/1 = 17.64
So, N:H = 5.88/17.64 = 1/3
The ratio of N:H comes out to be 1:3 from the percentage by mass.
So, the gas is ammonia.
formula is NH3.

Hope this information will clear your doubts about topic.
If you have any more doubts just ask here on the forum and our experts will try to help you out as soon as possible.


  • 1
What are you looking for?