Enter the number of gram equivalents of solute and the volume of solvent into the calculator to determine the normality.

Normality Formula

The following formula is used to calculate the normality of a concentration.

N = Eq / V
  • Where N is the normality
  • Eq is the number of gram equivalents of solute
  • V is the volume of the solvent in liters

The number of gram equivalents of solute is the measure of the total amount of a substance in moles multiplied by its valence.

The volume of the solvent in liters refers to the amount of liquid that is used as a dissolving medium in a solution.

Normality (chemistry) Definition

Normality in chemistry refers to the concentration of a substance in a solution. It is defined as the number of equivalents of a solute per liter of solution. Equivalents, in this context, represent the number of moles of a solute that can undergo a specific chemical reaction.

Normality is important in chemistry because it allows scientists to measure the reactivity of a substance in a solution. By knowing the normality, chemists can determine the quantity of a substance required for a reaction, as well as predict the extent to which the reaction will occur. This information is crucial for accurate and efficient experimentation, as it helps in determining the appropriate amount of reactants needed and ensures the desired outcome of the reaction.

Normality is particularly useful in acid-base reactions. Since acids and bases can vary in their strength, normality provides a standardized measure to compare their reactivity. By knowing the normality of a specific acid or base, chemists can make precise calculations for neutralization reactions and other acid-base reactions.

Normality Example

How to calculate normality?

  1. First, determine the gram equivalents of the solute

    Calculate the gram equivalents of solute.

  2. Next, determine the volume of solvent.

    Measure the volume of the solvent in liters.

  3. Finally, calculate the normality.

    Using the formula above, calculate the normality.


What is normality?

Normality is a concentration measure that is equal to the gram equivalent weight per liter of solution. It is also sometimes referred to as the equivalent concentration of a solution.

normality calculator
normality formula