Question

A solution of H2SO4(aq) with a molal concentration of 8.01 m has a density of 1.354 g/mL. What is the molar concentration of this solution?

Answer 1

8.01 m means 8.01 mols solute/kg solvent
1 mol H2SO4 = 98 g: 8 mols = 785g.
That's in a solution 1000 g so the total mass of the solution is 1000g + 785g = 1785g. That has a density of 1.354 g/mL so the volume = mass/density = 1785/1.354 = about 1318 or so mL.
M = mols/L = 8.01/0.1318L = ?M
Check my work.

Answer 2

Thats correct! thank you!

Answer 3

The above is actually incorrect you have to divide 8.01/1.318 because for every one mL you have 1000 mL. So instead of getting 60.77 you should get 6.07.

Answer 4

This is not correct

Answer 5

I need the idea, got it. Thanks