# What is the mass of 3.65 * 10^-2 mol K_2SO_4?

Potassium sulfate has a molar mass of $174.26$ $g \cdot m o {l}^{-} 1$. We simply multiply this by the molar quantity, to get approx. $6$ $g$.
$174.26$ $g \cdot \cancel{m o {l}^{-} 1}$ $\times$ $3.65 \times {10}^{- 2}$ $\cancel{m o l}$ $=$ ?? $g$