Question

A sample of impure air contains 80% N2
, 10% O2
, 5% CO2
and 5% Ar by
moles. The average molar mass of the sample is: (Ar=40)
A) 29.4 B) 29.6 C) 29.8 D) 40

Answer 1

Explanation:

Option D is the right answer.

Plzz mark this question as Brainliest.