Titration Calculator: Molarity from Titration Data

What is Titration?

Titration is a quantitative analytical technique where a solution of known concentration (titrant) is added to a solution of unknown concentration (analyte) until the reaction reaches the equivalence point. It is used to determine acid/base concentrations, oxidation states, and reaction stoichiometry.

🧫 Titration Calculator

Use our free calculator for instant, accurate results.

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📐 Formula

n_acid = n_base at equivalence → M₁V₁ = M₂V₂ (for 1:1 reactions)

For varying stoichiometry: n₁M₁V₁ = n₂M₂V₂ where n = moles ratio from balanced equation. V in mL or L — be consistent.

📝 Worked Example

25 mL of HCl is titrated with 0.1 M NaOH. Equivalence at 32 mL NaOH:
M_HCl × 25 = 0.1 × 32
M_HCl = 3.2 / 25 = 0.128 M

📝 How to Use the Calculator

Enter Titrant DataConcentration and volume used at equivalence point.

Enter Analyte VolumeVolume of the unknown solution being titrated.

Specify StoichiometryEnter the molar ratio from the balanced equation (1:1, 1:2, etc.).

Calculate MolarityView unknown concentration and verify equivalence calculation.

❓ FAQ

What is the equivalence point?

The exact point where the moles of titrant added equal the moles of analyte reacted — stoichiometrically complete reaction.

What is an indicator in titration?

A substance that changes color at or near the equivalence point. Phenolphthalein changes at pH 8.2–10, suitable for strong acid-weak base titrations.

What is Titration?