# What Is Molarity?

The number of moles of solute per unit volume of a solution is called molarity. Molarity is also known as molar concentration. The molarity of a substance is denoted by 'c'. The formula to calculate the molar concentration of a solute is:

c= n/V ------(a)

n= number of moles

V= volume of solute

The number of moles of a solute is equal to the ratio of molecules of solute in solution to the Avogadro's numbers.

n= N/NA

Put value of n in equation (a)

c= N/ NAV

C= N/ V

So, c= C/NA

The standard international unit for molarity is mole per meter cube.
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Molarity is the term used to describe the concentration
of a solution. In other words, it is the number of moles of solute
dissolved in 1 litre of solution.

A mole is a unit of measurement for a chemical
substance. Molarity emerged from mole, coined by German chemist from
Molekul which means molecule.

Molarity (M) = Moles of solute/Litres of solution

Where, solute is the substance dissolved, solvent is the substance
where the solute is dissolved (usually water) and the solution is the
combination of both solute and solvent.

The molarity equation can also be calculated by:

Moles = molarity × litres

Molarity = moles/litres

Litres = moles / molarity

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