# What mass is associated with a 1/2*mol quantity of sodium hydroxide?

Well........$\text{sodium hydroxide}$ has a molar mass of $40.0 \cdot g \cdot m o {l}^{-} 1$
And thus if we have a $\frac{1}{2} \cdot m o l$ of $\text{caustic soda}$, we have a mass of..........
1/2*cancel(mol)xx40*g*cancel(mol^-1)=??g