Molarity from mass percent and solution density (When w is mass % of solute, d is solution density in g cm⁻³, M_solute in g/mol: M (mol)
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When w is mass % of solute, d is solution density in g cm⁻³, M_solute in g/mol: M (mol L⁻¹) = (w × d × 10) / M_solute
What each symbol means
| Symbol | What it stands for |
|---|---|
| M | Molarity (mol L⁻¹) |
| d | Density of solution (g cm⁻³) |
| w | Mass percentage of solute (g per 100 g solution) |
| M_solute | Molar mass of solute (g mol⁻¹) |
When to use this
Single solute; w is weight/weight percent; solution volume from mass/density.