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Chemistry Formula Sheet

Every essential chemistry formula in one place. Print it or keep it open while you study.

Ideal Gas Law

gas laws

PV = nRT

Mole Calculations

stoichiometry

n = m / M

Molarity

stoichiometry

M = n / V = mol / L

Gibbs Free Energy

thermodynamics

deltaG = deltaH - T(deltaS)

Rate Law

kinetics

Rate = k[A]^m[B]^n

Arrhenius Equation

kinetics

k = Ae^(-Ea/RT)

Equilibrium Constant

equilibrium

K = [products]^coefficients / [reactants]^coefficients

Henderson-Hasselbalch Equation

acid base

pH = pKa + log([A-]/[HA])

Nernst Equation

electrochemistry

E = E° - (RT/nF)ln(Q) or E = E° - (0.0592/n)log(Q) at 25°C

Calorimetry

thermodynamics

q = mc(deltaT)

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