Tag: moles

Determining Water of Crystallization in Copper(II) Sulfate

Determining Water of Crystallization in Copper(II) Sulfate

Determine the number of moles of water of crystallisation in hydrated copper(II) sulfate by heating to constant mass. Classic IB, A-level and GCSE chemistry practical with full method, safety notes and calculations.

Concentration Calculations

Concentration Calculations

Master concentration calculations in chemistry. Learn molarity, dilutions and titration calculations with worked examples for IB, IGCSE and GCSE students.

Calculating the empirical formula of a compound

Calculating the empirical formula of a compound

Calculate the empirical formula of magnesium oxide by reacting magnesium with oxygen. IB and IGCSE chemistry practical with molar ratio calculations.

Empirical Formula of Magnesium Oxide: Practical Method

Empirical Formula of Magnesium Oxide: Practical Method

Determine the empirical formula of magnesium oxide by heating magnesium ribbon. IB and IGCSE chemistry practical with mass measurements and molar calculations.

Esterification: Equilibrium Constant Determination

Esterification: Equilibrium Constant Determination

Carry out an esterification reaction between ethanoic acid and ethanol. Test the equilibrium position at different temperatures. IB chemistry practical with Kc calculations.

The Winkler Method – Biological Oxygen Demand BOD

The Winkler Method – Biological Oxygen Demand BOD

Winkler method: measure dissolved oxygen in water samples and calculate biological oxygen demand (BOD). IB and A-level redox titration practical with full method.