Molarity

Molarity is a unit of concentration, measuring the number of moles of a solute per liter of solution. It is commonly used in chemistry and biochemistry.

Definition

Molarity (M) is defined as the number of moles of solute divided by the volume of the solution in liters. The formula for molarity is:

M = moles of solute / liters of solution

Calculation

To calculate the molarity of a solution, one needs to know the amount of solute in moles and the volume of the solution in liters. If the amount of solute is given in grams, it can be converted to moles using the molar mass of the solute.

Uses

Molarity is used in various fields of science, including chemistry, biochemistry, and pharmacology. It is used to express the concentration of a solution, which is important in many laboratory procedures and experiments.

Limitations

While molarity is a convenient measure of concentration, it has some limitations. It depends on the volume of the solution, which can change with temperature. Therefore, molarity is not an ideal measure of concentration for solutions that are subject to significant temperature changes.

See also

• Molality
• Mole (unit)
• Concentration

Molarity Resources
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