Solutions

Make a solution

Weigh a solid or pipette a liquid: enter what you have, get the bench step.

n = m/M ; c = n/V ; mass = c·V·M
Bridges grams and moles. Autofilled from the reagent picker.
Liquid reagents only. Autofilled for known liquids.
Optional. Defaults to 100%. Applied to the weigh-out (solid) or the neat-liquid molarity (liquid).
For "Dilute a stock": the concentration you are diluting from.
Protocol result
Learn and practise
How do you calculate make a solution?
A worked example with every step shown, and where it usually goes wrong.
Practice problems
Ten problems with worked solutions, every answer computed by this calculator.
Related calculators
The Fixer (rescue a weigh-out)
Weighed the wrong amount? Get the volume to dissolve it in to hit your target.
Hydrate mass adjuster
Protocol assumes one hydrate, you have another? Get the corrected mass.
Ionic strength and activity
I = ½ Σ cz², plus activity coefficients (Debye-Huckel to Davies).
Molarity to normality
N = M × n, with the equivalence factor you confirm for the reaction.
Simple dilution
C₁V₁ = C₂V₂, exactly how much stock and diluent to mix.
Serial dilution
A fold-dilution series, tube by tube.
All 57 calculators
Browse the full catalog by category.
Make a solution, Aliquot