1. Tardigrade
  2. Question
  3. Chemistry
  4. The vapour density of a gas A is twice that of a gas B. If the molecular weight of B is M, the molecular weight of A will be:

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The vapour density of a gas $A$ is twice that of a gas $B$. If the molecular weight of $B$ is $M$, the molecular weight of $A$ will be:

Some Basic Concepts of Chemistry

Solution:

$\frac{\text{Vapour \,density\, of}\, A}{\text{Vapour\, density\, of}\, B}=\frac{\text{molar \,mass\, of}\, A}{\text{molar\, mass\, of}\, B}$
Molar mass of $A =2\times\frac{M}{1}$