A gaseous mixture contains O2 and N2 in the ratio of 1: 2 by mass. The ratio of their number of molecules is:

Question

A gaseous mixture contains O2 and N2 in the ratio of 1: 2 by mass. The ratio of their number of molecules is: (A) 1: 2 (B) 2: 1 (C) 4: 7 (D) 7: 16

Tardigrade Admin · Accepted Answer

Moles of O 2 and moles of N 2 Ratio of molecules = Ratio of moles Hence O 2: N 2=(1/32): (2/28)=7: 16

Q. A gaseous mixture contains $O_{2}$ and $N_{2}$ in the ratio of 1 : 2 by mass. The ratio of their number of molecules is: