Chemistry calculators

Moles, concentrations, and stoichiometry — step by step.

Solution concentration, dilution, and reaction math — with careful unit handling and explanations of the underlying relationships.

Calculators
258
Topics: All Solutions (54) Reactions (19)
258 results
Chemistry / Reactions

Raoult's Law Calculator

Compute the partial vapor pressure of the solvent above an ideal solution from the mole fraction of the solvent and the...

basic
17,310 4.1 1 min
Chemistry / Solutions

pOH Calculator

Compute pOH from hydroxide ion concentration and the matching pH at 25 °C.

basic
18,220 4.2 1 min
Chemistry / Solutions

Boyle's Law Calculator

Find the missing pressure or volume in Boyle's law (P₁V₁ = P₂V₂) for an ideal gas at constant temperature.

basic
6,428 4.6 1 min
Chemistry / Solutions

pH Calculator

Convert between hydrogen-ion concentration and pH, and find pOH for the complementary side of the scale.

basic
2,293 4.2 1 min
Chemistry / Solutions

Charles's Law Calculator

Find the missing volume or temperature in Charles's law (V₁/T₁ = V₂/T₂) for an ideal gas at constant pressure.

basic
7,730 4.2 1 min
Chemistry / Reactions

Percent Yield Calculator

Compute the percent yield of a chemical reaction as the ratio of actual mass produced to the theoretical maximum.

basic
19,877 4.7 1 min