A-LevelChemistryChemical energeticsOct/Nov 2019Paper 3 Q216 Marks
In this experiment you will determine the enthalpy change, ΔH, for the reaction shown. MgO(s) + CO2(g) → MgCO3(s) To do this, you will determine the enthalpy changes for the reactions of magnesium oxide and magnesium carbonate with hydrochloric acid. Excess hydrochloric acid will be used in each reaction. You will then use Hess' Law to calculate the enthalpy change for the reaction. FA 2 is hydrochloric acid, HCl. FA 4 is magnesium oxide, MgO. FA 5 is magnesium carbonate, MgCO3.
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