How to use the molarity of a pure liquid calculator
Find the molar concentration of a pure liquid. Enter density, molar mass in the fields above; the molarity is computed instantly and plotted on the chart so you can see how the answer changes.
Formula
Variables
- rho — Density (g/mL)
- M — Molar mass (g/mol)
Worked example
With density = 1 g/mL, molar mass = 18.015 g/mol, the calculator gives molarity ≈ 55.5093 mol/L.
Frequently asked questions
What is the formula for the molarity of a pure liquid calculation?
Molarity (mol/L) = rho × 1000 / M. Here rho is density (g/mL), M is molar mass (g/mol).
What inputs do I need for the molarity of a pure liquid calculator?
You need density in g/mL, molar mass in g/mol. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use this calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.