Acid-Base Titration Calculator
Works out a titration result from the volumes and the known concentration. Choose what to find; the field for that value is ignored.
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The formula
C_sample = C_titrant × V_titrant × (coefficient of sample ÷ coefficient of titrant) ÷ V_sample
The balanced equation fixes how many moles of each react. Check it is balanced before entering the coefficients.
What to watch out for
For hydrochloric acid with sodium hydroxide, both coefficients are 1. For hydrochloric acid with calcium hydroxide, the equation is 2HCl + Ca(OH)₂ → CaCl₂ + 2H₂O, so hydrochloric acid has a coefficient of 2.
Frequently Asked Questions
What is the concentration if 22.5 mL of 0.1 mol/L base neutralises 25 mL of acid?
0.09 mol/L, for a one-to-one reaction.
What is the difference between the end point and the equivalence point?
The equivalence point is where the reacting amounts match exactly. The end point is where the indicator changes, which is a practical stand-in for it.