Molarity Calculator

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Molarity calculator tool used to calculate the molarity of a given solution. Molarity is one of the important concepts of science. Molarity is the amount of moles of solute for a given volume of the solution in liters. 
Molarity of a solution = number of moles / volume of the solution in liters 

 
Example 1: Find the Molarity of 2.50 moles of NaOH in 5 L of the solution?

In the given question moles of NaOH are given as 2.50 moles.

The volume of the solution is given as 5 liters.

Molarity of a solution = number of moles / volume of the solution in liters

Therefore, therefore the Molarity M = 2.50 moles / 5 liters

Molarity of the given solution M = 0.50 moles / L


Example 2: What is the molarity of dissolving 1.5 moles of Na2CO3 in 250ml of
water to make a solution?


In the given question moles of Na2CO3 is 1.5moles.

The volume of the solution is given as 250 ml.

Converting 250 ml to liters gives 250/1000 L = 0.250 L

Molarity of a solution = number of moles / volume of the solution in liters

Therefore, therefore the Molarity of the solution = 1.5 moles / 0.250 liters

Molarity = 6.0 M

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