Normality
### Formula:
$$N=\frac{\text{Number of gram equivalents}}{V}$$
### Terminologies:
- N β Normality; concentration expressed as gram equivalents per litre of solution.
- Gram Equivalent β Amount of substance that reacts with or supplies one mole of reactive species.
- V β Volume of solution in litres.
### Usage:
- Used in acid-base and redox reaction calculations.