# Normality Calculator

Free handy Normality Calculator tool is useful to know the normality of the given chemical solution easily and instantly. You must provide the input values and hit the calculate button to get the normality of your values in fraction of seconds.

Normality Calculator: Online Tool gives the normality of chemical solution by taking the equivalent of solute and number of liters in the solution in a blink of eye. Our online calculator is designed to give the accurate output immediately. People can learn the process of finding the normality of a given chemical solution without doubts. Check out the step by step process of solving normality with an example in the following sections.

## How to Check Normality of Chemical Solution?

Normality is defined as the equivalent concentration of the solution, which is used to measure the concentration of the solution. You can get the simple steps that are helpful to solve the Normality of solution. Follow these guidelines

• At first find the molecular weight of the solution
• Divide the molecular weight by the number of hydrogens in the solution to get equivalent weight.
• Equivalent of the solution is weight of the solution by equivalent weight
• Normality formula is Equivalent of solute/ Liters of Solution
• Substitute the equivalent of solute and liters of solution in the above formula to get normality value.

Example

Question: What is the normality of a solution containing 50g of HCL in 1.5 L of solution?

Solution:

Normality= Equivalent of Solute/ Liters of Solution

Molecular Weight of HCl is 36.46 g/mol

Equivalent Weight= Molecular Weight/ Number of Hydrogens

=36.46/1= 36.46 g

Equivalent of Solute= Given solution weight/ Equivalent Weight

= 50 g/ 36.46 g= 1.37

Normality= 1.37/1.5 = 0.914 N

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1. What are the formulae of Normality?

The various formulae helpful in solving the normality are:

Normality = Number of gram equivalents/ volume of solution in litres

Number of gram equivalents = weight of solute/ equivalent weight of solute

Normality (N)= Weight of Solute (gram) * Equivalent Weight * Volume in Litres

Normality = Molarity * Molar Mass/ Equivalent Mass

N= Molarity * Basicity = Molarity * Acidity

2. Find the normality of 0.321 g sodium carbonate in a 250 mL solution?

Normality N = 0.321 g Na2CO3 x (1 mol/105.99 g) x (2 eq/1 mol)

N = 0.1886 eq/0.2500 L

Normality is 0.0755 N

3. When can we use Normality?

The following are the specifications, when we can use normality:

• Normality is used in acid-base chemistry to describe the concentration of Hydronium and Hydroxide.
• In redox reactions, the equivalence factor describes how many electrons can be donated or accepted by an oxidizing or reducing agent.
• Normality is used in precipitation reactions to indicate the no of ions that will precipitate.

4. What is the relation between normality and molarity?

Normality and molarity are used to indicate the quantitative measurement of a substance in chemistry. Molarity is defined as the number of moles of solute per litre of solution. The formula of molarity is

Molarity (M) = No. of moles of solute / volume of the solution in litres

Formula of Normality is

Normality = [Molarity × Molar mass]/ Equivalent Mass

However, when we have acidity or basicity the normality can be

Normality = Molarity * Basicity

Normality= Molarity * Acidity