## What is the definition for Normality?

The concentration of the solution expressed in a number of equivalent dissolved per liter of solution is known as the normality chemistry.

**Normality is represented by N.**

### Units of normality:

Its units are eq/L or meg/L. The latter unit is mostly expressed in medical reporting.

### Formula of Normality chemistry:

These are the formulas to calculate normality:

### Steps for calculation :

Here are some steps mentioned which have to be followed to calculate normality:

- In the first step, students should gather information about the equivalent weight of the reacting substance or the solute. Then search the molecular weight and valence through literature.
- In the next step, the number of gram equivalents of solute is calculated.
- Then calculate the volume in liters.
- In the last step, normality is calculated by using the above formula and replacing the values.

### How normality is calculated in Titration?

- Titration is a technique in which a solution of known concentration and volume is gradually added to another solution of unknown concentration until the neutralizing reaction occurs.
- By using the given formula, the normality of the acid and base titration is calculated.

Where,

- N
_{1}= Indicates the Normality of the Acidic solution - V
_{1}= Designate the Volume of the Acidic solution - N
_{2}= Indicates the Normality of the basic solution - V
_{3}= Designate the Volume of the basic solution

### Relationship between Molarity and Normality

Both normality and molarity are necessary terms that play crucial roles in chemistry. They are used for the qualitative measurement of a solute or substance.

**Molarity:**

It is the number of moles of solute per volume of the solution in liters. It is commonly used for the determination of pH such as dissociation or equilibrium constants etc.

**Formula of Molarity**

Its formula is mentioned below:

**Normality**:

It is the number of equivalents dissolved per liter of the solution.

**Formula of normality**

**Normality of bases**

- In the case of bases, the number of H+ are counted which are present in the acid molecule which it can donate.
- The given formula is used to calculate the normality of bases:

**Normality of Acids**

- In the case of acids, the number of OH- is counted which are present in the base molecule that it can donate.
- The given formula is used to calculate the normality of acids:

### Conversion of molarity to normality:

Molarity can be converted into normality by using the given formula:

### Describe the difference between Normality Vs Molarity:

### What is the difference between Normality and Molality?

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