Question

The density (in g/l) of 1 mol of N2 gas at STP is​

Answer 1

mass of 1 mole of N2 gas= 28g

volume of 1 mole of N2 at STP=22.4L

Density=mass/volume

            =28/22.4

           =1.25g/L

Answer 2

Answer:

Mass of one mole or molecule of nitrogen gas= 28g

Since gram atomic mass of N is 14.

1 mole of nitrogen at STP occupy volume= 22.4 litres ( l ).

Then, Density of 1 mole nitrogen = mass / volume

=28/22.4

= 1.25g/l