Mole fraction (x_i = n_i / n_total)
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x_i = n_i / n_total
What each symbol means
| Symbol | What it stands for |
|---|---|
| n_i | Moles of i |
| x_i | Mole fraction of component i (dimensionless) |
| Σn_j | Total moles of all components |
When to use this
Ideal mixtures / Raoult's law foundation; all x_i sum to 1.