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Home » Science Calculators » Chemistry Chemistry Calculators Plan reactions, prep solutions, and interpret lab results with calculators covering stoichiometry, equilibrium, spectroscopy, and electrochemistry. Molecular weight calculator Parse chemical formulas, hydrates, and nested groups to compute molar mass and composition. Molar mass helper Break down empirical or molecular formulas and export atomic contribution tables. Stoichiometry calculator Convert between moles, grams, and particles with balanced equation guidance. Limiting reactant Identify the limiting reagent, theoretical yield, and excess remaining for reactions. Percent yield Compare actual versus theoretical yield with limiting reactant integration. Grams to moles Convert sample mass into amount of substance using molar mass lookups. Moles to grams Scale products and reactants with automatic molar mass lookup and rounding. Equation balancer Balance chemical equations, format states, and download LaTeX-friendly output. Empirical formula Find simplest whole-number ratios from percent composition or elemental mass. Percent composition Calculate mass percent of each element in a compound or mixture. Molarity calculator Compute solution molarity, required solute mass, or solvent volume interchangeably. Solution dilution Apply C1V1 = C2V2 for quick dilution series or single-step adjustments. Serial dilution planner Design multi-step dilutions with tube-by-tube volumes and cumulative factors. Titration curve Simulate acid-base titrations with equivalence points, buffer regions, and charts. Ph calculator Determine pH, pOH, [H+], and [OH-] for strong acids/bases and dilute solutions. Henderson–hasselbalch Model buffer pH from pKa and conjugate acid-base ratios with unit conversions. Beer–lambert law Relate absorbance, concentration, path length, and molar absorptivity. Arrhenius equation Estimate reaction rates or activation energy from temperature-dependent kinetics. Ideal gas law Solve PV = nRT for any variable with unit-aware conversions and STP presets. Van 't hoff factor Evaluate colligative properties, dissociation, and freezing point depression impacts. Nernst equation Predict electrode potentials under non-standard conditions with log-based outputs. Electronegativity difference Assess bond polarity, ionic character, and dominant interaction type. Gibbs free energy Relate Delta G, Delta H, Delta S, and temperature to determine reaction spontaneity. Isotope abundance Derive average atomic mass from isotope masses and fractional abundances. Born–haber cycle Assemble lattice energies from enthalpy changes in ionic compound formation. Percent error Quantify analytical accuracy with signed or absolute percent error outputs. Fick's law of diffusion calculator | life and earth sciences Calculate diffusion rates using Fick Related categories Science Calculators Physics Calculators Math & Conversions Biology Tools
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