Can you show me the formula I need to do this problem. please

Question

a solution is made by dissolving 0.35 mole of LiI in enough water to give a final volume of 2.60 ml. What is the molarity of the solution?

thank you

Answer 1

mols LiI = grams/molar mass.
Substitute and solve for mols.

Then M = mols/L solution. You know mols and L (after converting from mL), solve for M.