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Molarity Calculator

Calculate molar concentration (molarity, M) of a solution from moles of solute and total solution volume in litres. The most common concentration unit in chemistry, essential for stoichiometry, titrations, dilutions, and any lab calculation involving solutions.

Moles of solute (mol)

Volume of solution (L)

Chemistry

Percent Composition Calculator

Find the mass percentage of any element in a compound. Essential for chemistry students and lab work when verifying empirical formulas or analyzing compound purity.

Mass of element (g)

Total molecular mass (g)

Key differences

	Molarity Calculator	Percent Composition Calculator
Category	Chemistry	Chemistry
Inputs required	2	2
Result	Molarity (M)	Percent Composition (%)
What it does	Calculate molar concentration (molarity, M) of a solution from moles of solute and total solution volume in litres. The most common concentration unit in chemistry, essential for stoichiometry, titrations, dilutions, and any lab calculation involving solutions.	Find the mass percentage of any element in a compound. Essential for chemistry students and lab work when verifying empirical formulas or analyzing compound purity.