A-LevelChemistryChemical energeticsOct/Nov 2023Paper 3 Q212 Marks
2 You will determine the enthalpy change for the reaction of magnesium oxide with water to form magnesium hydroxide. MgO(s) + H2O(l) → Mg(OH)2(s) The procedure will involve two experiments, one with magnesium oxide and the other with magnesium hydroxide. In each case you will react the solid with hydrochloric acid. FA 6 is magnesium oxide, MgO. FA 7 is 2.0 moldm⁻³ hydrochloric acid, HCl. FA 8 is magnesium hydroxide, Mg(OH)2.
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