# How many moles are in 6.0 grams of carbon-12?

May 25, 2016

$\text{There are 0.50 moles precisely}$.

#### Explanation:

The molar mass of ""^12C is $12.0 \cdot g \cdot m o {l}^{-} 1$.

What does this mean? It means that ${N}_{A} \text{ (Avogadro's number "=6.022xx10^23)}$ ""^12C atoms have a mass of $12.0 \cdot g$.

You have specified $6.0 \cdot g$.

Thus $\frac{6.0 \cdot g}{12.0 \cdot g \cdot m o {l}^{-} 1}$ $=$ $0.50 \cdot m o l$.