Please solve the question

Please solve the question ) .1784 g (4) 4 amu Given that one mole of N 2 at NTP occupie 22.4 litre the density of N 2 is - (1) 1.25 g L-l (3) 2.5 g L-l (2) 0.80 g L-i

Dear student,

The volume is given = 22.4 litres
1 mole is equal to the molar mass of nitrogen gas = 28 g
Density = mass / volume 
             = 28 g / 22.4 litres
             = 1.25 g/L
Hence, option (1) is correct.

Regards