Question

What is the molarity of a solution made by dissolving 2.00g of potassium chloride (KCl) in enough water to make 150 ml of solution?

Answer 1

M = mols/L
mols = g KCl/molar mass KCl
You know mols and you know L, solve for M.

Answer 2

What is the molarity of a solution made by dissolving 2.00g of potassium chloride (KCl) in enough water to make 150 ml of solution?