Normality Formula
The concentration of the given solution is determined using the Normality Formula:
Normality (N) = Number of Gram Equivalents / Volume of the Solution (in liters)
Here, the number of gram equivalents are defined as:
Number of Gram Equivalents = Weight of Solute (in gm) / Equivalent Weight of Solute
Hence,
Normality (N) = Weight of Solute (in gm) / (Equivalent Weight of Solute × Volume of the Solution (in liters))
Normality – Definition, Formula, Equations and Solved Examples
The normality formula is used to measure the concentration of a solution like molarity and molality. Normality is a measure of the number of grams equivalent to solute present given volume of the solution. Redox reactions, precipitation reactions, and acid-base chemical reactions all often make use of normality. It depends on the temperature and the chemical reaction being observed.
The term “equivalent concentration” describes how reactive a solution is. This is frequently used in redox reactions and acid-base reactions. In physical chemistry, one of the important terms used is the normality formula.
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