Formulas
Systematic covering of formulas for the US National Chemistry Olympiad.
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Welcome to the Formulas section! Here, we list the key formulas that are needed for IB-level and above chemistry. This can aid you in summarizing concepts after you've learned about them in your chemistry class, and can serve as a formula bank for you when you are doing practice. This list is being constantly updated.
Stoichiometry
Stoichiometry
Dimensional analysis
Gas Stoichiometry Eq.
Solution Stoichiometry Eq.
Limiting Reactant/Excess Reactant Stoich
Descriptive/Laboratory
Descriptive/Laboratory
Mainly memorization. No formulas needed.
States of Matter
States of Matter
Ideal Gas Law Eq.
Velocity (root mean square) Eq.
Derivation: Kinetic Energy vs. Temperature Eq.
Thermodynamics
Thermodynamics
Gibbs Free Energy Eq.
Calorimetry Eq.
Heat of Formation Eq.
Bond Enthalpy Eq.
Hess's Law
Deriving Heat of Reaction Through Indirect Cycles
Kinetics
Kinetics
Differential Rate Law
Arrhenius Eq.
Change Derived Arrhenius Eq.
Zeroth Order Integrated Rate Law
First Order Integrated Rate Law
Second Order Integrated Rate Law
Zeroth Order Half Life Eq.
First Order Half Life Eq.
Second Order Half Life Eq.
Equilibrium Conc. Between Two Species
Equilibrium
Equilibrium
Van't Hoff Eq.
Change Derived Van't Hoff Eq.
Clausius-Clapyron Eq.
Equilibrium Constant
Free Energy Equilibrium Eq.
Oxidation-Reduction
Oxidation-Reduction
Nernst Equation
E(cell) to Gibbs
Gibbs to K (Eq. Constant)
Coloumbs to Amps*s
Coloumbs to Amps*s + n equation
Atomic Structure
Atomic Structure
Molecular Structures & Bonding
Molecular Structures & Bonding
Organic Chemistry
Organic Chemistry
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