Asolution is prepared by dissolving 20 g naoh (fw = 400 g/mol) to 255 ml of solution. if the density of the solution is 1.15 gim, what is the mass percent naoh in the solution? 0.68% 0.78% 0.90% 6.8% 78% nt navigator

6.82% is the mass percent NaOH in the solution.

Explanation:

Mass of the solute that is NaOH = m = 20 g

Mass of the solution = M

Volume of the solution = V = 255 mL

Density of the solution = d = 1.15 g/mL

M = 293.25 g

Mass percentage of solute :(w/w)%

6.82% is the mass percent NaOH in the solution.