Chemistry
Analytical chemistry
Concentrations, dilution, titration, pH and analytical recovery.
Chemistry
Molar concentration
c = n / V→ChemistryMass concentration
β = m / V→ChemistrySolution molality
b = n / msolvent→ChemistryDilution final volume
V₂ = C₁V₁ / C₂→ChemistryTitration concentration
Cₐ = CᵦVᵦνₐ/(Vₐνᵦ)→ChemistrypH of a strong monoprotic acid
pH = −log₁₀ c(H⁺)→ChemistryAnalytical recovery
R = mfound / madded × 100%→ChemistrySolution normality
N = nz / V→ChemistrypOH from hydroxide concentration
pOH = −log₁₀[OH⁻]→ChemistryHydrogen concentration from pH
[H⁺] = 10⁻ᵖᴴ→ChemistryHydroxide concentration from pOH
[OH⁻] = 10⁻ᵖᴼᴴ→ChemistryWeak acid pH
pH = ½(pKa − log C)→ChemistryWeak base pOH
pOH = ½(pKb − log C)→ChemistryDissociation degree
α = [H⁺] / C→ChemistrypKa from acid constant
pKa = −log₁₀Ka→ChemistrypKb from base constant
pKb = −log₁₀Kb→ChemistryHydrolysis constant
Kh = Kw / Ka→ChemistrypH of weak acid salt
pH = 7 + ½(pKa + log C)→ChemistrypH of weak base salt
pH = 7 − ½(pKb + log C)→ChemistryOstwald dilution law
Ka = α²C / (1 − α)→ChemistryBuffer solution pH
pH = pKa + log([A⁻]/[HA])→ChemistryBuffer capacity
β = Δn / (VΔpH)→ChemistryEquilibrium constant A+B⇌C
Kc = [C] / ([A][B])→ChemistryIonic strength of two ions
I = ½(c₁z₁² + c₂z₂²)→ChemistryMixing two solutions
Cmix = (C₁V₁ + C₂V₂)/(V₁ + V₂)→