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Molar Concentration Calculator

# Molar Concentration Calculator

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Molar concentration calculatoris a useful tool to compute concentration of a solution by no of mole the solute

has in 1 liter of solution also called Molarity. This Molar concentration helps to find the amount of a particular

substance that is present in a given volume of the solution. This can be understood and easily evaluated by

the following given below examples:-

Example 1: Given 5.0 L of solution has 2.0 mol of NaCl;find the Molarity of the solution made by

NaCl.

Solution 1:

Since the amount of moles of NaCl is 2 moles.

The volume of solution is V = 5 L

Molar concentration = Molarity = No of Moles of NaCl / Volume of solution

= 2 / 5 = 0.4 mol/L or 0.4 M

So the Answer is: Molarity / Molar concentration = 0.4 M

Example 2: Given500 ml of solution has 6.92 g of NaCl, find the Molarity of the solution made by

NaCl.

Solution 2:

Since the molecular weight of NaCl is 58.5 g

The volume of solution is V = 500 ml = 0.5 L

Weight of NaCl given = 6.92 g

No. of moles of NaCl = 6.92/58.5 = 0.1183 moles

Molar concentration = Molarity = No of Moles of NaCl / Volume of solution

= 0.1183/0.5 = 0.4 mol/L or 0.24 M

So the Answer is: Molar concentration = 0.24 M