# What is the molar mass and the mass of 5.0 mol of saccharin, C_7H_5NO_3S?

Approx. $1$ $k g$. $1$ $m o l$ saccharin has a mass of $183.18$ $g$. Simply multiply moles by molar mass.
$5$ $\cancel{m o l}$ $\times$ $183.18$ $g \cdot \cancel{m o {l}^{-} 1}$ $=$ ?? $g$
The molar mass of saccharin is simply $\left(7 \times 12.011 + 5 \times 1.00794 + 14.01 + \ldots .\right) g \cdot m o {l}^{-} 1$. From where do all these numbers come?