Answer
The equation is M=$\frac{moles}{volume}$
Where M is molarity in moles of solute per liter, moles is moles, and volume is in liters.
Work Step by Step
This equation comes from the equation MV=moles.
If both sides are divided by volume, you get M=$\frac{moles}{volume}$
By plugging in numbers into this equation, you will get the concentration of the solution in moles per liter (mol/L).