Free solution concentration calculator for Molarity (M), Molality (m), % Mass (w/w), % Volume (v/v), Mole Fraction (X), PPM and PPB. Solve for any variable with step-by-step solutions and built-in
Thermochemistry Calculator Select Calculation Type: Heat Transfer (q = mcΔT) Enthalpy of Reaction (from ΔH°f) Calorimetry (Constant Pressure) Show Theory & Formulas Heat Transfer Parameters Heat (q): JkJ Mass (m):
Gas Laws Calculator Select Gas Law: Combined Gas Law Boyle's Law (P₁V₁ = P₂V₂) Charles's Law (V₁/T₁ = V₂/T₂) Gay-Lussac's Law (P₁/T₁ = P₂/T₂) Ideal Gas Law (PV = nRT)
Stoichiometry Calculator Stoichiometry: Theory & Formulas → Stoichiometry is a section of chemistry that involves using relationships between reactants and/or products in a chemical reaction to determine desired quantitative data.
Reaction Rate Calculator (Chemical Kinetics) Chemical Kinetics: Theory & Formulas → Chemical kinetics is the branch of chemistry concerned with understanding the rates of chemical reactions. It explores how different
Free online Michaelis-Menten calculator. Accurately model enzyme kinetics, find reaction velocity (V), and analyze Vmax, Km, and Substrate concentration with an interactive curve graph.
Arrhenius Equation Calculator Calculate Rate Constant (k) Calculate Activation Energy (Ea) Calculate k₂ at T₂ Calculate Pre-exponential Factor (A) Calculate Temperature (T) Calculate Rate Constant (k) Pre-exponential Factor (A): Units
Free Nernst equation calculator. Enter E°, temperature (°C or K), electrons (n), and Q to find cell potential E and Gibbs free energy ΔG under non-standard conditions. Full step-by-step solution
Molecular Weight & Molarity Calculator Molecular Weight Molarity Calculations Molecular Weight (Molar Mass) Chemical Formula (e.g., H2O, C6H12O6, Mg(NO3)2): Molarity Calculations Calculate Molarity (M) Calculate Mass (g) Calculate Volume (L)
Vapor Pressure Calculator Calculates vapor pressure at a different temperature using the Clausius-Clapeyron equation. Known Vapor Pressure (P₁): atm Pa (Pascal) kPa mmHg (torr) bar Temperature for P₁ (T₁): °C