Hello NeedHelp!

To find the molarity given the molality and the density:

First, since you are given the molality, let's just assume that you are working with 1 kg of water as your solvent. Use this as a conversion factor to get moles of your solute:

1) Multiply both sides by kg to get moles.

2) Use Molar Mass of LiF to get grams

3) g solute + g solvent = grams solution

4) Find liters

5) Use your moles from #1 & your liters from #4 to get your molarity:

Hope that helps! Good luck!