STOI MS Yield - Contents
- Page 1Introduction - ReviewIntroducing the concept of limiting reagent and yield
- 20 marksPage 2Problem 125.00 mL 0.1000 mol L–1 AgNO3 is added to 50.00 mL 0.1000 mol L–1 NaCl. Deduce the masses of all substances present when reaction is complete.
- 20 marksPage 3Problem 2A mixture of 0.50 cm3 (0.55 g) of methyl benzoate and 7.0 cm3 of 10% w/v aqueous KOH solution is heated at reflux for 20 minutes. The benzoate anion formed initially is converted into the corresponding acid by acidification after hydrolysis is complete. After proper drying of the benzoic acid the average student would find the mass of their product is 0.35 g. Calculate the percentage yield of the reaction for a typical student.
- 14 marksPage 4Problem 330.0 mL of 0.40 mol L–1 aqueous potassium iodate solution is mixed with 5.0 mL of 1.0 mol L–1 aqueous strontium nitrate. The strontium iodate that precipitates is filtered off, dried, and found to have a mass of 0.80 g. Calculate the yield of the reaction.
- 9 marksPage 5
- 7 marksPage 6