# How many moles are equivalent to 71.1 grams of barium nitride?

##### 1 Answer

Dec 2, 2017

#### Explanation:

First you need to know the molar mass of barium nitride,

https://pubchem.ncbi.nlm.nih.gov/compound/15251597

Divide the given mass of barium nitride, by its molar mass. Since molar mass is a fraction, g/mol, I prefer to divide by multiplying by its reciprocal, mol/g.