# To make a 0.10*L volume of [NaOH](aq)=0.15*mol*L^-1, what mass of sodium hydroxide is required?

Aug 9, 2016

Approx. $600 \cdot m g$
$\text{Moles of sodium hydroxide}$ $=$ $0.100 \cdot \cancel{L} \times 0.15 \cdot m o l \cdot \cancel{{L}^{-} 1}$ $=$ $0.015 \cdot m o l$
$\text{Mass of sodium hydroxide}$ $=$ $0.015 \cdot \cancel{m o l} \times 40.00 \cdot g \cdot \cancel{m o {l}^{-} 1}$ $=$ ??g
It would be hard to measure such a mass of sodium hydroxide accurately inasmuch as the stuff is deliquescent, and absorbs atmospheric moisture readily. It would be better to make a solution of the approximate concentration, and then make an accurate determination of $\left[N a O H\right]$ with standardized acid.