Question

9. Given that one mole of N, at NTP occupies
22.4 litre the density of N, is -
(1) 1.25 g L-1
(2) 0.80 g L-1
(3) 2.5 g L-
(4) 1.60 g L-1
​

Answer 1

Answer: 4) 1.60 g L-1

Explanation: The atomic mass of N is 14. And density is equal to the ratio of mass to volume

Answer 2

volume of nitrogen at NTP( Normal temperature and pressure)= 22.4 litres

we know that ,

nitrogen is the dynamic gas,

molar mass of the nitrogen = 28g/mole

[•.•14*2=28]

density = mass/volume

density = 28/22.4

density of nitrogen = 1.25g/litre

Hence, the density of the nitrogen at NTP(Normal Temperature and Pressure) is 1.25g/ litre