# Concentration of Solutions

## Homework Statement

You are given a 77.0% solution of sulfuric acid, H2SO4. What is the molality of this solution? The density of the H2SO4 solution is 1.303 g/mL.

## The Attempt at a Solution

I know I divide 77.0 by 100, and then I have no idea from there.

## Answers and Replies

symbolipoint
Homework Helper
Express your percentage concentration as a fraction or ratio, using a numerator and a denominator. You are given the density of solution, and you may need the the molecular weight of H2SO4. Your targe result is to be in moles of H2SO4 per kilogram of water. You should obviously understand that 77.0% means $$\frac{77}{100}$$.