M=\frac{n}{V}Variables
- M: molarity in mol/L
- n: amount of solute in moles
- V: solution volume in litres
How to use this formula
Calculates solution concentration as moles of solute per litre of solution.
Important notes
- Use total solution volume, not solvent volume alone.
- Convert millilitres to litres before calculation.
Quick example
0.25 mol dissolved to make 0.5 L of solution gives 0.5 M.
Applicability, worked calculation, and verification
Assumptions and domain checks
- Convert millilitres to litres before calculation.
- For the Molarity Formula, every denominator must be nonzero, and the numerator and denominator must remain correctly grouped.
- Balance quantities and units, and state the temperature, pressure, concentration, or idealization assumptions used.
Worked example
0.25 mol dissolved to make 0.5 L of solution gives 0.5 M.
Common mistakes
- When copying Molarity Formula, keep the complete numerator and denominator grouped; a missing brace or parenthesis changes the result.
- Verify the result of Molarity Formula with a known case, inverse operation, dimensional check, or independent calculation before publishing it.
Continue the workflow
Use Molarity Formula in your own work
- Check the domainMatch the variables and assumptions to the problem before substituting values.
- Copy the exact notationPreserve grouping, signs, and exponents in
M=\frac{n}{V}. - Edit or convertOpen the expression in the LaTeX editor, then export it for your document or web page.
Review and verification
Last reviewed: 2026-07-23
Automated quality check: Kept noindex until the missing evidence is supplied.
Formula references
- Digital Library of Mathematical FunctionsNational Institute of Standards and Technology — Definitions, notation, identities, and reference material for mathematical functions.
Frequently asked questions
What is the Molarity Formula used for?
Calculates solution concentration as moles of solute per litre of solution.
Can I copy this formula as LaTeX?
Yes. Copy M=\frac{n}{V} or open it in the LaTeX editor.
What should I check before using it?
Confirm that each variable, unit, domain restriction, and assumption matches the problem.