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Convert Percentage to Molarity
About Percentage to Molarity Conversion
Converting percentage concentration to molarity requires knowing the molecular weight of the solute and the density of the solution (for w/w and v/v percentages).
Mass/Volume % (w/v):
M = (% w/v × 10) / MW
Direct conversion using molecular weight
Mass/Mass % (w/w):
M = (% w/w × d × 10) / MW
Requires solution density (d)
Volume/Volume % (v/v):
M = (% v/v × d_solution × 10) / (MW × d_solute)
Requires both solute and solution densities
Where:
- M = Molarity (mol/L)
- MW = Molecular weight (g/mol)
- d = Density (g/mL)
- % = Percentage concentration
This conversion is essential in analytical chemistry, pharmaceutical formulations, and laboratory solution preparation.