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
Free Thermochemistry Calculators for heat transfer, specific heat, calorimetry, phase change, heating curves, Hess’s Law, standard enthalpy, bond energy, Gibbs free energy, and final temperature.
Free Gas Laws Calculator for Combined Gas Law, Boyle’s Law, Charles’s Law, Gay-Lussac’s Law, Ideal Gas Law, Dalton’s Law, Avogadro’s Law, gas density, molar mass, and STP gas volume.
Free Stoichiometry Calculator for molar mass, mole ratios, mass-to-mass conversions, limiting reactants, theoretical yield, percent yield, empirical formulas, solution stoichiometry, and gas stoichiometry.
Free Reaction Rate Calculator for chemical kinetics. Calculate average rate, rate law, rate constant, reaction order, half-life, Arrhenius equation, activation energy, and concentration-time tables.
Free Michaelis-Menten Equation Calculator for reaction velocity, Vmax, Km, substrate concentration, kcat, catalytic efficiency, and enzyme kinetics analysis.
Free Arrhenius Equation Calculator for rate constant, activation energy, temperature, pre-exponential factor, two-point Arrhenius analysis, and rate ratio.
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
Free Molecular Weight & Molarity Calculator for molar mass, moles, grams, molarity, dilution, solution preparation, and chemistry formulas.
Free Vapor Pressure Calculator for Antoine equation, Clausius-Clapeyron equation, Raoult’s law, boiling point pressure, temperature, mole fraction, and chemistry learning.