Neutralization Reaction Calculator

Enter the weight, volume, and normality in the neutralization reaction calculator to find the value of the Equivalent weight.

Neutralization Reaction Calculator

  • gram
  • gram

Neutralization Reaction Calculator

The acid-base neutralization Reaction Calculator is used for the estimation of the equivalent weight of acid or base. Users can switch to find any of the four mentioned values.

  • Normality
  • Weight of acid or base
  • Volume of acid or base 
  • Equivalent weight

The neutralization equation used in this calculator requires volume and weight of acid or base along with normality. 

What is a neutralization reaction?

The reaction of acid and base which produces salt and water is called a neutralization reaction.


Acid + Base = Salt + water

The method is based on the fact that one gram equivalent of the acid completely neutralizes one gram equivalent of the base and vice-versa. 

Examples of neutralization reaction:

  • Ca(OH)2 + H2CO3  → CaCO3  + 2H2
  • H3PO4 + 3NaOH → Na3PO4 + 3H2
  • NaOH + H2SO4 → Na2SO4 + H2O

Equivelent weight formula:

Equation to find equivalent weight is:

E.W = weight / (volume * normality)

How to find equivalent weight?


Calculate the equivalent weight of acid of volume 25. The weight of acid is 15 grams and normality is 20


Step 1: Identify the values.

Volume = 25

Weight  = 15

Normality = 20

Step 2: Use the values on the formula.

Equivalent weight = weight / (volume * normality)

= 15 / (25 * 20)

= 0.0300