What are molarity, molality, and normality? Explain with an example.
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Solution
Molarity
Molarity of solution is a weight by volume relationship to represent its strength and is defined as 'the number of moles of solute dissolved in one liter of solution.
Formula of molarity
Example of molarity
or solution of means that of has been dissolved in one liter (or one cubic decimetre).
Molality
Molality (m) is defined as the number of moles of the solute per kilogram (kg) of the solvent.
Formula for molality
Example of molality
solution of means that of is dissolved in of water.
Normality
It is the measure of concentration equal to the gram equivalent mass of a substance per liter of solution.
Formula for normality
Example of normality
solution is one Molar solution because only mole of is formed per mole of .