Neutralization Calculator

Calculate the concentration or volume needed for a neutralization reaction.
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0.1250
Results
Concentration of Base
0.1250 M
Titration Analysis
Understanding the neutralization point

Reaction Stoichiometry

This calculation assumes a 1:1 mole ratio (e.g., HCl + NaOH). At the equivalence point, Moles Acid = Moles Base.
0.1 M x 25 mL = 0.1250 M x 20 mL

Concentration Comparison

The base is more concentrated than the acid, so a smaller volume of base is needed to neutralize the acid.

Experimental Context

In a lab titration, you would use an indicator (like phenolphthalein) that changes color exactly when the neutralization is complete to measure these volumes accurately.

How to Use

Step-by-step instructions
  1. 1Enter the volume of Acid (Va).
  2. 2Enter the concentration of Acid (Ca).
  3. 3Enter the volume of Base (Vb).
  4. 4The calculator will compute the unknown concentration of the Base (Cb).

Titration Formula

At the equivalence point, the moles of acid equal the moles of base. M is molarity (concentration) and V is volume.
MaVa = MbVb

Variables:

MaMolarity of Acid
VaVolume of Acid
MbMolarity of Base
VbVolume of Base

Example

Titration

Inputs:

Vol Acid:25 mL
Conc Acid:0.1 M
Vol Base:20 mL

Steps:

  1. 1.MaVa = 0.1 x 25 = 2.5
  2. 2.Mb = 2.5 / 20 = 0.125 M
Result:
0.125 M

Frequently Asked Questions

Does unit matter?

As long as volume units are consistent (e.g., both mL or both L), the calculation works.