Normality (N) of a solution is equal to

Options

A. `("No. of moles of solute")/("Volume of solution in litre")`
B. `("No. of gram equivalent of solute")/("Volume of solution in litre")`
C. `("No. of moles of solute")/("Mass of solvent in kg")`
D. None of these

Answer

To determine the normality (N) of a solution, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Definition of Normality**:
Normality is defined as the number of gram equivalents of solute present in one liter of solution.

2. **Write the Formula for Normality**:
The formula for normality can be expressed as:
\[ N = \frac{\text{Number of gram equivalents}}{\text{Volume of solution in liters}} \]

3. **Identify the Components**:
- **Number of gram equivalents**: This refers to the amount of solute that can react or replace one mole of hydrogen ions (H⁺) in a reaction.
- **Volume of solution**: This is the total volume of the solution measured in liters.

4. **Conclusion**:
Therefore, normality (N) can be summarized as:
\[ N = \frac{\text{Gram equivalents}}{1 \text{ L}} \]
This indicates that normality is directly related to the concentration of reactive species in the solution.

### Final Answer:
Normality (N) of a solution is equal to the number of gram equivalents of solute per liter of solution.

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