# What is the molar mass and the mass of 5.0 mol of acetylsalicylic acid, C_9H_8O_4?

Feb 20, 2016

#### Answer:

Aspirin has a molar mass of $180.16$ $g \cdot m o {l}^{-} 1$

#### Explanation:

So, we know the mass of 1 mol. You have a 5 mole quantity:

$5$ $\cancel{m o l}$ $\times$ $180.16 \cdot g \cdot \cancel{m o {l}^{-} 1}$ $=$ ??? $g$

In terms of Avogadro's number, ${N}_{A}$, how many molecules of aspirin does this mass represent?