Calculadora de Titulação
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
M₂ = M₁V₁ / V₂
About this calculator
The titration calculator determines the equivalence point in acid-base titrations. It uses the formula M₁V₁ = M₂V₂, where M₁ is the molarity of the titrant solution, V₁ the volume of titrant used, M₂ the molarity of the unknown solution, and V₂ the volume of the unknown solution. The tool calculates the molarity of the unknown solution or the volume needed to reach the equivalence point.
To use the calculator, enter the known values: titrant molarity, volume used, and volume of the unknown solution. The result is the molarity of the unknown solution. This tool is useful in chemistry labs, industries, and classroom experiments to determine concentrations of acids or bases in samples.
Remember that the formula assumes a 1:1 reaction between acid and base. For reactions with different stoichiometric ratios, adjustments are needed. Also, the titration must be performed with a suitable indicator to detect the endpoint. Common errors include incorrect volume readings and using non-standardized solutions.
Frequently asked questions
What does the equivalence point mean in a titration?
It is the moment when the amount of titrant added is stoichiometrically equivalent to the amount of unknown substance, resulting in complete neutralization.
Can I use this calculator for titrations that are not 1:1?
Not directly. The formula M₁V₁ = M₂V₂ assumes a 1:1 ratio. For other ratios, you need to adjust the equation with stoichiometric coefficients.
What units should I use for volumes and molarities?
Use any volume unit as long as it is the same for all volumes. Molarity should be in mol/L. The result will have the same molarity unit.
Why does my result seem wrong?
Check if volumes were measured correctly and if the titrant solution is standardized. Also, confirm the reaction is 1:1 and the indicator was chosen appropriately.
Is this calculator suitable for redox titrations?
No, it is specific for acid-base titrations. For redox, different calculations involving equivalents and potentials are needed.