Titration Calculator

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*Ma*Va=nOH*Mb*Vb

Where,

• 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

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.

Acids:

Bases:

Example:

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.

Answer:

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%

Seek instant help regarding several chemistry concepts all at one place Chemistrycalc.Com and clear all your ambiguities easily

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.