Comprehensive suite of chemistry calculators and tools for students, educators, and professionals
Calculate the exact molecular mass of any chemical compound or molecule based on its chemical formula.
Calculate NowConvert between moles and number of particles using Avogadro's constant (6.022 × 10²³).
Calculate NowGenerate accurate Lewis dot structures showing electron arrangement in molecules and compounds.
Generate StructurePredict molecular geometry and shape using Valence Shell Electron Pair Repulsion theory.
Predict ShapeDetermine bond polarity and electronegativity differences between elements in chemical bonds.
Calculate NowCalculate energy required to break chemical bonds or released when bonds form.
Calculate EnergyDetermine empirical and molecular formulas from elemental composition and molar mass data.
Find FormulaAutomatically balance chemical equations to satisfy the law of conservation of mass.
Balance EquationBalance oxidation-reduction reactions using the half-reaction method in acidic or basic solutions.
Balance RedoxCalculate reactant and product quantities in chemical reactions based on balanced equations.
Calculate NowIdentify chemical reaction types (synthesis, decomposition, single/double replacement, combustion).
Identify TypeCalculate reaction rates, rate constants, and determine reaction order from experimental data.
Calculate RateCalculate pressure-volume relationships in gases at constant temperature (P₁V₁ = P₂V₂).
Calculate NowCalculate volume-temperature relationships in gases at constant pressure (V₁/T₁ = V₂/T₂).
Calculate NowCalculate pressure-temperature relationships in gases at constant volume (P₁/T₁ = P₂/T₂).
Calculate NowApply the combined gas law equation (P₁V₁/T₁ = P₂V₂/T₂) for gas property calculations.
Calculate NowCalculate pressure, volume, moles, or temperature using the ideal gas equation PV = nRT.
Calculate NowCalculate partial pressures of gases in mixtures using Dalton's law and mole fractions.
Calculate NowApply the van der Waals equation for real gases considering molecular volume and attractions.
Calculate NowCalculate pH, pOH, hydrogen ion concentration, and hydroxide ion concentration in solutions.
Calculate pHCalculate acid/base dissociation constants and their relationship with pH in buffer solutions.
Calculate NowCalculate solution concentration in terms of molarity (mol/L) and molality (mol/kg).
Calculate NowCalculate final concentration or volumes needed when diluting solutions (M₁V₁ = M₂V₂).
Calculate NowCalculate normality (equivalents per liter) for acids, bases, and redox solutions.
Calculate NowCalculate unknown concentrations, volumes, or pH at equivalence point in titration experiments.
Calculate NowCalculate freezing point depression, boiling point elevation, and other colligative properties.
Calculate NowCalculate changes in freezing and boiling points when solutes are added to solvents.
Calculate NowCalculate osmotic pressure of solutions using the van't Hoff equation (Π = MRT).
Calculate NowCalculate vapor pressure using Raoult's law and the Clausius-Clapeyron equation.
Calculate NowCalculate Gibbs free energy change (ΔG) to determine reaction spontaneity and equilibrium.
Calculate NowCalculate enthalpy changes (ΔH) for reactions using bond energies and Hess's law.
Calculate NowCalculate entropy changes (ΔS) to measure disorder increase in chemical processes.
Calculate NowCalculate cell potential under non-standard conditions for electrochemical cells.
Calculate NowCalculate mass of substance produced during electrolysis based on current and time.
Calculate NowCalculate absorbance, concentration, or path length using the Beer-Lambert law (A = εcl).
Calculate NowCalculate radioactive decay half-lives and determine remaining amounts after specified time.
Calculate NowCalculate decay rates, remaining amounts, and identify decay products for radioactive isotopes.
Calculate NowIdentify metal ions based on characteristic flame colors in qualitative analysis.
Identify MetalsGenerate IUPAC names for organic compounds and identify functional groups in molecular structures.
Name CompoundsBasic calculations and tools for general chemistry concepts.
Tools for calculating gas properties and relationships.
Calculators for solution properties and concentrations.
Tools for energy, entropy, and equilibrium calculations.
Calculators for electrochemical cells and reactions.
Tools for radioactivity and nuclear decay calculations.