# What is the mass of 3 moles of calcium chloride, CaCl_2?

The molar mass of anhydrous calcium chloride, $C a C {l}_{2}$, is $110.98 \cdot g \cdot m o {l}^{-} 1$
And thus $3$ $m o l$ of $C a C {l}_{2}$ have a mass of $3 \cdot \cancel{m o l} \times 110.98 \cdot g \cdot \cancel{m o {l}^{-} 1}$ $\cong$ $333 \cdot g$.