High School Chemistry Formula Generator
Select a Formula:
Moles = Mass / Molar Mass
Number of Particles = Moles × Avogadro's Number
Moles = Volume / Molar Volume (22.4L at STP)
Density = Mass / Volume
PV = nRT (Ideal Gas Law)
Concentration = Moles / Volume
Molarity = Moles of Solute / Volume of Solution
Relative Atomic Mass (RAM)
Boyle's Law (P1V1 = P2V2)
Charles's Law (V1/T1 = V2/T2)
Avogadro's Law (V1/n1 = V2/n2)
Dalton's Law of Partial Pressures
Faraday's Laws of Electrolysis
Faraday's Constant (F = 96500 C/mol)
Energy Change (ΔH = Hproducts - Hreactants)
Solubility (Solubility = Amount of solute / Amount of solvent)
Rate of Reaction (Rate = Change in concentration / Time)
Radioactive Decay (N = N0e^(-λt))
pH = -log[H+]
Kw = [H+][OH-]
Buffer Solution: pH = pKa + log([A-]/[HA])
Kc = [products]^coefficients / [reactants]^coefficients
Nernst Equation: E = E° - (RT/nF) * ln(Q)
Hess's Law: ΔH = ΣΔH(products) - ΣΔH(reactants)
Bond Energy: ΔH = Σ(ΔHbonds broken) - Σ(ΔHbonds formed)
Electronegativity Difference: ΔEN = EN(Atom A) - EN(Atom B)
Graham’s Law: Rate1 / Rate2 = √(Molar Mass2 / Molar Mass1)
Calorimetry: Q = mcΔT
Le Chatelier's Principle: (shifts to restore equilibrium)
Moles in Reaction: n = (mass / Molar Mass) × stoichiometric coefficient
Oxidation State: Sum of oxidation numbers = 0 for neutral molecule, sum of charges for polyatomic ions