Hi, I've got a problem regarding concentration of solutions.
The question is "Concentrated phosporic acid contains 85% H3PO4 by mass and has a density of 1.69 g/mL. Assuming 1000 mL solution, calculate"
a. mass of solute
= I just followed the formula, % mass = mass(solute)/mass(solution) x 100, and I got 1436.5 g
b. molality
= following molality's formula, I got 57.71 mol/kg.
c. molarity
=following its formula, I got 14.66 mol/L.
d. Normality
= following its formula, I got 43.98
My question is, did I get it right? If not, where did I go wrong? Any responses are appreciated. Thanks!
Sorry for the format since I'm using mobile to post this.