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

1 Answer
Aug 9, 2016

Approx. 600*mg

Explanation:

"Moles of sodium hydroxide" = 0.100*cancelLxx0.15*mol*cancel(L^-1) = 0.015*mol

"Mass of sodium hydroxide" = 0.015*cancel(mol)xx40.00*g*cancel(mol^-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 [NaOH] with standardized acid.