Chemistry

Molarity Calculator

Find solution concentration in moles per litre.

Parameters Live Compute
Calculated Output
Molarity (mol/L (M)) 0.25
Formula: molarity = moles ÷ volume (L)
Step-by-Step Breakdown
1. Values used:
2. Amount of solute = 0.5 mol
3. Solution volume = 2
4.
5. Molarity = Amount of solute / Solution volume = 0.5 / 2 = 0.25mol/L (M)
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Molarity (M) is the most common way to express concentration: moles of solute per litre of solution.

The math behind it

molarity = moles of solute ÷ litres of solution.

Worked Example

0.5 mol in 2 L → 0.25 mol/L (0.25 M).

Frequently Asked Questions

Molarity vs molality?

Molarity is per litre of solution; molality is per kilogram of solvent (temperature-independent).

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