Chemistry

Titration Calculator

Work out an unknown concentration from a titration result.

By TheCalcTools Updated Formula checked and tested

Your numbers

1 for HCl with NaOH; 2 when 2 moles of titrant react with 1 mole of analyte.

Your results

Analyte concentration (mol/L)
Analyte concentration (mol/L)
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Moles of titrant used
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Titration Calculator by TheCalcTools

How the Titration Calculator works

Enter the titrant’s concentration, the volume needed to reach the endpoint, the sample volume and the reaction’s mole ratio.

Moles of titrant are concentration times volume.

Dividing by the ratio gives the moles of analyte, and dividing by the sample volume gives its concentration.

The formula

n(titrant) = c × Vc(analyte) = c(titrant) × V(titrant) ÷ (ratio × V(sample))

Worked example

Using the default values shown in the calculator:

Titrant concentration (mol/L)0.1
Titrant volume used (mL)24.6
Sample volume (mL)25
Mole ratio titrant : analyte1
  1. Moles of NaOH used = 0.1 × 24.6 ÷ 1,000 = 0.0025 mol.
  2. Concentration of the acid = 0.00246 ÷ 0.025 = 0.0984 mol/L.

Result:

Analyte concentration (mol/L)0.0984
Moles of titrant used0.0025

Frequently asked questions

What is the equivalence point?

The point at which the moles of titrant exactly react with the moles of analyte. The endpoint, seen by an indicator, approximates it.

How can I improve accuracy?

Repeat until you get concordant titres, standardise the titrant and read the burette at eye level.

Sources and further reading

Molarity CalculatorFind molarity and moles from a mass of solute dissolved in a volume pH CalculatorEnter a pH or concentration and get the other acid-base values Theoretical Yield CalculatorEnter the limiting reactant, the mole ratio and molar masses to get the maximum product… Limiting Reagent CalculatorEnter two reactants and the balanced equation coefficients to find which one runs out… Atom Economy Calculator (Green Chemistry)Enter the molar mass of the desired product and of all reactants to get the atom economy Moles CalculatorConvert grams to moles and molecules

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This calculator gives estimates for information only. Check important results independently before you rely on them. See our disclaimer.