Connected Chemistry
Follow matter through the calculation: convert mass to moles, prepare solutions, predict acid–base and equilibrium behavior, track reaction energy and speed, then connect electron transfer to measurable laboratory signals.
Stoichiometry & Solutions
Translate particles into moles, mass and concentration, then use balanced ratios to predict reaction quantities.
Molar Mass
Find the mass of one mole of a substance.
Grams to Moles
Convert a measured mass into chemical amount.
Stoichiometry
Use balanced coefficients to relate reactants and products.
Limiting Reagent
Identify the reactant consumed first.
Percent Yield
Compare experimental product with the predicted maximum.
Molarity
Express dissolved amount per unit solution volume.
Acids & Equilibrium
Move from concentration to pH, dissociation, buffers and the competing forces that establish equilibrium.
pH
Convert hydrogen-ion concentration into acidity.
pOH
Express hydroxide concentration logarithmically.
Acid Dissociation Constant
Measure the equilibrium strength of a weak acid.
Henderson–Hasselbalch
Calculate buffer pH from an acid–base ratio.
Equilibrium Constant
Describe the composition favored at equilibrium.
Solubility Product
Relate dissolved ion concentrations to salt equilibrium.
Thermodynamics & Kinetics
Separate whether a reaction is favorable from how quickly it proceeds.
Calorimetry
Relate heat transfer to mass and temperature change.
Hess’s Law
Add reaction steps to obtain an overall enthalpy.
Gibbs Free Energy
Predict thermodynamic favorability at a temperature.
Reaction Rate
Measure concentration change over time.
Integrated Rate Law
Connect concentration and time for a reaction order.
Arrhenius Equation
Relate rate constant to activation energy and temperature.
Electrochemistry & Analysis
Track electron transfer from cell voltage and electrolysis to quantitative optical measurements.
Standard Cell Potential
Combine half-cell potentials into a galvanic-cell voltage.
Nernst Equation
Adjust cell potential for nonstandard conditions.
Electrolysis
Calculate charge transferred by an electric current.
Faraday’s Law
Convert electrical charge into deposited mass.
Beer–Lambert Law
Relate absorbance to path length and concentration.
Transmittance & Absorbance
Convert transmitted-light fraction into absorbance.