A-LevelChemistryAnalytical techniquesMay/June 2021Paper 3 Q28 Marks
In Question 1 you used a titration method to determine the value of x in a hydrated salt. In Question 2 you will use a gravimetric method. In this method a sample of solid is heated to remove the water of crystallisation. You will carry out this method on a different hydrated compound, FA 4, with formula MZ•yH2O. In FA 4 the value of y is an integer. MZ•yH2O(s) → MZ(s) + yH2O(g) FA 4 is a hydrated compound, MZ•yH2O.
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