# What is the molar mass of helium gas in g/mol?

##### 1 Answer
Aug 4, 2016

Surely you've got a Periodic Table in front of you if you are doing your physics or chemistry homework?

#### Explanation:

$H e$ is a monatomic molecule with a molar mass of $4.003 \cdot g \cdot m o {l}^{-} 1$. You should have a Table in front of you; you will be permitted to use one in every test in Chemistry or Physics you ever sit.