Question

The density of
mixture
of O2 and
N2 at NTP is 1.3 g/litre
what is the partial pressure of N2
​

Answer 1

Answer:

Let 1 mol of gas is present.So, 22.4 L will be volume of the mixture

Density=

volume

mass

Molar Mass of Mixture is 1.3×22.4=29.12 g/mol

% of oxygen present in mixture = x

% of nitrogen present in mixture = 1-x

Molar Mass of oxygen and nitrogen are 32 and 28 g/mol respectively

32(x) + 28(1-x) = 29.12

x = 0.28

Partial pressure of O

2

is 0.28 atm