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Mole Fraction-Molarity Relation
### Formula:
$$X_A=\frac{n_A}{n_A+n_B}$$
### Terminologies:
- $$X_A$$ → Mole fraction of component A.
- $$n_A$$ → Moles of component A.
- $$n_B$$ → Moles of other component.
### Usage:
- Used to calculate composition of binary solutions.
