Chemistry · May / June 2025 · Paper 11 · Question 13

100 cm$^3$ of aqueous potassium hydroxide with a concentration of 1.00 mol / dm$^3$ reacts with excess dilute sulfuric acid. 2KOH(aq) + H$_2$SO$_4$(aq) → K$_2$SO$_4$(aq) + 2H$_2$O(l) 3.48 g of pure anhydrous potassium sulfate is produced. What is the percentage yield of potassium sulfate?

1. A5%
2. B10%
3. C20%
4. D40%

As printed in the paper