⚗️ Chemistry

🔦Beer-Lambert Law Calculator Calculate absorbance and transmittance from concentration using the Beer-Lambert law, free online. 🌡️Boiling Point Elevation Calculator Calculate how much a dissolved solute raises a solvent's boiling point, free online. 🧫Buffer pH (Henderson-Hasselbalch) Calculator Calculate the pH of a buffer from the pKa and the concentrations of the acid and its conjugate base, free online. 🎈Combined Gas Law Calculator Solve P₁V₁/T₁ = P₂V₂/T₂ for the one unknown pressure, volume or temperature, free online. 💧Dilution Calculator Calculate the final concentration after dilution using C1V1=C2V2, free online. 🧪Empirical Formula Calculator Find the empirical (and molecular) formula of a compound from its percent composition, free online. ⚖️Equilibrium Constant (Kc) Calculator Calculate Kc for a reaction aA + bB ⇌ cC + dD from equilibrium concentrations, free online. 🧊Freezing Point Depression Calculator Calculate how much a dissolved solute lowers a solvent's freezing point, free online. 🎈Gas Density Calculator Calculate the density of a gas from pressure, molar mass and temperature, free online. 🌡️Ideal Gas Law Calculator Calculate pressure using the ideal gas law PV=nRT from volume, moles and temperature, free online. ⚖️Limiting Reagent & Theoretical Yield Calculator Find the limiting reagent, theoretical yield and leftover excess reactant for a reaction A + B → product, free online. 🧴Mass Percent & ppm of a Solution Calculator Calculate mass percent, ppm, mass fraction and molality of a solution from solute and solvent masses, free online. ⚗️Molality Calculator Calculate molality from moles of solute and mass of solvent, free online. ⚛️Molar Mass Calculator Calculate the molar mass of any chemical formula instantly, free online. 🧪Molarity Calculator Calculate the molarity of a solution from moles of solute and volume of solution, free online. ⚛️Mole, Gram & Particle Converter Convert between grams, moles and number of atoms or molecules using the molar mass and Avogadro's number, free online. 🧫Normality Calculator Convert molarity to normality using equivalents per mole, free online. 🌊Osmotic Pressure Calculator Calculate the osmotic pressure of a solution with the van 't Hoff equation, free online. 📊Percent Yield Calculator Calculate percent yield from actual and theoretical yield, free online. 🧮Rate Law Calculator Calculate the reaction rate from the rate constant, concentrations and reaction orders, free online. 🔥Reaction Enthalpy (Hess's Law) Calculator Calculate the enthalpy change of a reaction from standard enthalpies of formation of products and reactants, free online. ⏳Reaction Half-Life (0th, 1st, 2nd Order) Calculator Calculate the half-life and remaining concentration for zero-, first- and second-order reactions, free online. 🧂Solubility from Ksp Calculator Find the molar solubility and grams per litre of a sparingly soluble salt from its Ksp, free online. 🔢Stoichiometry Calculator Convert grams of one substance to moles and grams of another using balanced-equation coefficients, free online. 🧪Titration Calculator Find an unknown concentration from a titration using C₁V₁n₁ = C₂V₂n₂, free online.