Titulação Ca·Va = Cb·Vb
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
About this calculator
The Ca·Va = Cb·Vb titration calculator is a tool to determine the unknown concentration of an acid or base solution by relating volumes and concentrations. It uses the formula Cb = (Ca·Va)/Vb, where Ca and Va are the known concentration and volume of the standard solution (acid or base), and Cb and Vb are the unknown concentration and volume of the solution being analyzed.
To use it, input the values of Ca (concentration of the standard solution), Va (volume used in titration), and Vb (volume of the unknown solution). The calculator solves the equation automatically and provides Cb. It is ideal for chemical analysis in labs, such as determining acidity in food products or verifying chemical compound purity.
Ensure volume units are consistent (ml or liters) and that the equation is stoichiometrically balanced. Measurement errors can lead to inaccurate results. Additionally, the formula assumes a 1:1 stoichiometric ratio between reactants; adjustments are needed if the reaction ratio differs.
Frequently asked questions
How does the titration calculator work?
It applies the formula Cb = (Ca·Va)/Vb, where Ca and Va are the known concentration and volume of the standard solution, and Vb is the volume of the unknown solution. It mathematically solves the stoichiometric relationship of the neutralization reaction.
When should I use this calculator?
Use it when you need to determine the unknown concentration of an acid or base solution, based on measured volumes during titration with a standard solution.
Should volume units be the same?
Yes. All volumes must be in the same unit (ml or liters) to ensure accurate calculations.
Does the calculator account for different stoichiometric ratios?
No. The formula assumes a 1:1 ratio. For reactions with other ratios, manual adjustments are required.
Do I need to calibrate equipment before use?
Yes. Volumetric devices like burettes and flasks should be calibrated to ensure measurement accuracy.