Created By : Rina Nayak

Reviewed By : Rajashekhar Valipishetty

Last Updated : Apr 03, 2023

Our free Titration Calculators makes use of acid base titration calculations to analyse the properties of a solution during an experiment or what an unknown solution is when doing fieldwork. It can also measure the amount of solutionis required to neutralise the unknown solution indicated by a change in the indicator. All you need to do is provide input values and press the calculate button to get the result.

How to Find Titration?

We know that when an cid or base dissolves in water, its H+ or OH- ions dissociate, shifting the natural self ionistaion equilibrium of water and making the solution more basic or acidic.

In chemistry, titration is a qualitative analysis technique that is used to compute the concentration of a specific analyte in the mixute. During the process of titration, a titrant/titrator is produced which is a standard solution whose volume, concentration are specified. The titract react with the anlyte until it reaches the equivalence point.

While doing a titration, we have known volume, unknown molarity to which colour indicator is added. It will change the colour when the ratio 1:1 is achieved. After adding acid or base to known molarity, we can measure the unknown molarity using the equation.



  • nH is the number of H+ ions contributed per molecule of acid
  • Ma is the acid molarity
  • Va is the acid volume
  • nOH is the number of OH- ions contributed per molecule of base
  • Mb is the molarity of base
  • Vb is the volume of the base

Acid Base Titration Method

The procedure of acid-base titration method is given here:

  • The required volume of the base is taken whose concentration is known in a pipette and is taken into a titration flask.
  • The unknown acid concentration is taken in the Burette and is allowed to react with base drop by drop.
  • An indicator is added into the titration flask for detecting the endpoints
  • When the reaction reaches completion the solution colour in the titration flask chnages
  • The used indicator can be phenolphthalein that forms pink colour in the base solution, colourless in acid, neutral solution.
  • The endpoint is reached when the pink color solution changes to colourless.

Table of common acids and bases and their strengths


Formula Name Strength
HCl Hydrochloric acid Strong
HNO3 Nitric acid Strong
H2SO4 Sulfuric acid Strong
HBr Hydrobromic acid Strong
HI Hydroiodic acid Strong
HClO4 Perchloric acid Strong
HClO3 Chloric acid Strong
HCOOH Formic acid Weak
CH3COOH Acetic acid Weak
C6H5COOH Benzoic acid Weak
HF Hydrofluoric acid Weak
HNO2 Nitrous acid Weak
H3PO4 Phosphoric acid Weak


NaOH Sodium hydroxide Strong
KOH Potassium hydroxide Strong
Ca(OH)2 Calcium hydroxide Strong
Ba(OH)2 Barium hydroxide Strong
NH3 Ammonia Weak
CH3NH2 Methylamine Weak
C5H5N Pyridine Weak


Question: Dissolve 2.5 g of the unknown monobasic acid sample in 150 ml of water. A 20 ml portion of this solution requires 10 ml of 0.12 M NaOH solution to reach the titrations equivalence point. If the molecular mass of the acid is 130 g/mol, determine the purity (%) of the acid.


For 20 ml acid solution: 10 ml of 0.12 mol NaOH required

The number of base equivalents = 0.12 x 10 = 1.2 x 10-3 equivalent

So, in 20 m of acidic solution 1.2 x 10-3 equivalent of acids

Therefore, x = 6 x 10-3 equivalent, because it is a monobasic acid, the mass of the titration equation of the acid is same.

In a 2.5 g sample:

Acid mass = 6 x 10-3 x 122 = 0.732

% purity = 0.732/2 x 100 = 36%

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FAQ’s on Titration Calculator

1. What is the titration definition?

Titration is a qualitative analysis technique that is used to calculate the concentration of the analyte in a mixture. The process of titration contains the preparation of titrant, which is a standard solution whose volume and concentration is predetermined.

2. How does the titration calculator works?

The simple steps are to select a method to calculate titration from the drop-down list. Place the values in the input fields and hit the calculate button. It gives the molarity and volume of the acid, base and moles of H+ and OH- ions contributed as output.

3. What are the types of titration?

The different types of titration are acid-base titrations, redox titrations, precipitation titrations and complexometric titrations.

4. What is acid-base titration?

Acids can be divided into strong or weak acids based on the amount of dissociation to give H+ ions when dissolved in water. When an acid solution of known concentration is titrated against a strong base, the concentration of acid can be calculated by considering the neutralization reaction reaches completion.

Titration Calculator