# How many moles of S are in 125 g of SO_2?

##### 1 Answer
Feb 14, 2016

Approx. $2$ $m o l$.

#### Explanation:

$S {O}_{2}$ has a molecular weight of $64.07$ $g \cdot m o {l}^{-} 1$.

You specified $125 \cdot g$ of stuff:

So $\frac{125 \cdot \cancel{g}}{64.07 \cdot \cancel{g} \cdot m o {l}^{-} 1}$ $=$ ?? mol???