Chemistry Calculators

Molar Mass

Molecular weight.

Mole Calculator

Mass ↔ moles.

Concentration

Molarity, molality, %.

Dilution

C₁V₁ = C₂V₂.

Ideal Gas Law

PV = nRT.

pH & pOH

Acidity/alkalinity.

Neutralization

Acid-base stoichiometry.

Limiting Reactant

Yield-determining reagent.

Theoretical Yield

Maximum product mass.

Percent Yield

Actual vs. theoretical.

Equilibrium Constant

Kc, Kp.

Le Chatelier’s

Reaction shift prediction.

Enthalpy

Heat of reaction.

Entropy

Disorder change.

Gibbs Free Energy

ΔG = ΔH − TΔS.

Electrochemistry

Cell potential.

Boiling Point Elevation

ΔTb = Kb × m × i.

Freezing Point Depression

ΔTf = Kf × m × i.

Titration

Volume & molarity.

Redox Reaction

Balancing oxidation-reduction.

Rate Law

Reaction order & rate constant.

Half-Life

t½ = ln(2)/k.

Spectroscopy

Wavelength, energy, frequency.

Osmotic Pressure

π = iMRT.

Buffer pH

Henderson-Hasselbalch.

Solubility Product

Ksp & ion concentration.

Nernst Equation

Non-standard cell potential.

Colligative Properties

Boiling, freezing, vapor.

Henry’s Law

Gas solubility in liquid.

Arrhenius Equation

k = A × e^(-Ea/RT).