Clausius-Clapeyron Boiling Point Shift Calculator
Uses the Clausius-Clapeyron equation to find a new boiling point or vapor pressure at a different temperature given the...
Moles, concentrations, and stoichiometry — step by step.
Solution concentration, dilution, and reaction math — with careful unit handling and explanations of the underlying relationships.
Uses the Clausius-Clapeyron equation to find a new boiling point or vapor pressure at a different temperature given the...
Calculates the freezing point depression and boiling point elevation of an ethylene glycol–water mixture using colligati...
Solves the integrated second-order rate law: 1/[A]_t = 1/[A]₀ + k·t. Given any three of the four variables ([A]₀, [A]_t,...
Calculates nuclear mass defect and binding energy (total and per nucleon) from proton/neutron counts and actual nuclear...
Uses the two-point Arrhenius equation ln(k₂/k₁) = (Ea/R)(1/T₁ − 1/T₂) to solve for activation energy Ea in kJ/mol.
Calculates nuclear binding energy BE = Δm·c² from the mass defect Δm = Z·m_p + N·m_n − M_nucleus, expressed in MeV (1 u...
Determines the molar mass of an unknown solute from the measured freezing point depression: M = Kf × w_solute(g) / (ΔTf...
Convert between the acid dissociation constant Ka and its logarithmic form pKa using pKa = −log₁₀(Ka). Pick the directio...
Compute the percent dissociation α of a weak acid from its Ka and initial molar concentration using the small-x approxim...
Calculates the buffer capacity β (mol/L per pH unit) using the Van Slyke equation. Maximum buffer capacity occurs at pH...
Compute the standard electromotive force of a galvanic cell from the standard reduction potentials of its cathode and an...
Calculates radioactive activity at any elapsed time from initial activity and decay constant or half-life. Returns activ...
Calculates absorbance, molar absorptivity, path length, or concentration using the Beer-Lambert law. Converts absorbance...
Calculates the mass of substance deposited or dissolved during electrolysis using Faraday's laws from current, time, mol...
Calculates molar absorptivity ε = A/(c·l) and solute concentration c = A/(ε·l) from absorbance A, path length l, and eit...
For the equilibrium A(g) ⇌ 2B(g), calculates the degree of dissociation α from Kp and total pressure P: Kp = 4α²P / (1−α...
Calculates the volume of a concentrated stock solution needed to prepare a working solution of given molarity and volume...
Calculates Gibbs free energy change ΔG from enthalpy ΔH, temperature T, and entropy change ΔS, indicating reaction spont...
Calculates the molar internal energy and enthalpy of combustion from calorimeter heat capacity, temperature rise, sample...
Converts mass composition of a binary mixture into mole fractions from component masses and molar masses.
Applies Avogadro's law: V₁/n₁ = V₂/n₂ at constant temperature and pressure. Solve for any missing variable, and find the...
Calculates theoretical yield and percentage yield from the limiting reagent. Enter the limiting reagent mass, its molecu...
Uses Hess's law via the Born-Haber cycle to calculate the lattice enthalpy of an ionic compound from standard thermochem...
Calculates the half-life, concentration at time t, and time to reach a given fraction remaining for a first-order reacti...