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| Concentration of a Solution |
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| The mass percentage of a component in a given solution is the mass of the component per 100g of the solution. For e.g., if WA is the mass of the component A, WB is the mass of the component B in a solution. Then, |
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| Example: A 10% solution of sodium chloride in water (by mass) means that 10g of sodium chloride are present in 100g of the solution. |
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| Volume percentage |
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| This unit is used in case of a liquid dissolved in another liquid. The volume percentage is defined as the volume of the solute per 100 parts by volume of solution. |
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| For e.g., If VA is the volume of component A present is Vsol volume of the solution. |
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| Then, |
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| For e.g., a 10% solution of ethanol C2H5OH, in water (by volume) means that 10cm3 of ethanol is present in 100cm3 of the solution. |
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