Question 4: Sulfuric acid is titrated with potassium hydroxide in the preparation of potassium sulfate salt.

(i) Explain why this method is recommended for the preparation for this salt.

(ii) Write an ionic equation for the reaction.

(i) Potassium sulfate is a Group I salt, which is soluble. Since both solutions are colourless, we can used titration method and an indicator to determine the end-point of neutralisation between the two solutions.

(ii)