May/June 2026 Paper 11

2026 · 40 questions · 40 parts · 40 marks

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39Percentage Yield Atom EconomyMedium1 mark
A sample of 2.76 g of ethanol was mixed with an excess of aqueous acidified potassium dichromate(VI). The reaction mixture was then heated under reflux for one hour. The required organic product was then collected by distillation. The yield of product was 75.0%. Which mass of product was collected?