An organic compound, consisting of carbon, hydrogen, nitrogen and oxygen contains 40.67% of carbon and 8.47% of hydrogen 0.5g of that compound gives 94.91mL of nitrogen at STP. What is the empirical formula of that compound?

Explanation

Mass of 94.91 mL nitorgen at STP`=(28xx94.91)/(22400)=0.1186g`
`therefore`Amount of nitorgen present`=(0.1186)/(0.5)xx100=23.72%`
`therefore`Amount of oxygen present
`=[100-(40.6+8.47+23.72)]%=27.21%`
`therefore`Ratio of no. of atoms of C, H, N, O in the compound,
`C:H:N:O=(40.67)/(12):(8.47)/(1):(23.72)/(14):(27.21)/(16)`
`=3.39:8.47:1.69:1.7~~2:5:1:1`