How do I calculate the molarity of a solution?

Molarity is calculated by dividing the number of moles of solute by the volume of the solution in liters. If a solution is 1.00 molar (written as 1.00 M), it means there is 1.00 mole of solute dissolved in every liter of the solution. As an example, if there is a solution containing 2 moles of sugar (sucrose) dissolved in 1 liter of water, the molarity would be 2 moles divided by 1 liter. Thus, it means there are 2 moles of sugar dissolved in every liter of water.