# What is the molecular weight of chloroform if 0.0275 mol weighs 3.28 g?

Nov 9, 2016

$\text{Moles of substance}$ $=$ $\text{Mass of substance"/"Molecular mass}$

#### Explanation:

So, rearranging that expression:

$\text{Molecular mass}$ $=$ $\text{Mass of substance"/"Moles of substance}$

$=$ $\frac{3.28 \cdot g}{0.0275 \cdot m o l}$ $\cong$ $120 \cdot g \cdot m o {l}^{-} 1$.

Is this consistent with the actual molecular mass?