chemistry molarity

Question

what final volume of water (in liters) have to be added to 1.35 moles of magnesium sulfate to create a 0.51 M solution?

Answer 1

The formula for molarity is M=mol of solute/L of the solution and therefore to solve for L (liters) we can rearrange the equation as L=mol/M so L=1.35/.51=2.65 L of water that needs to be added.