In a pilot bioreactor designed to improve the sustainability of polymer synthesis, a biochemical engineer predicts that a strain of genetically modified bacteria should produce 12.4 g of polyhydroxyalkanoate (PHA) bioplastic from a carbon-neutral substrate.
Following the fermentation and extraction process, the engineer successfully isolates 9.15 g of pure PHA.
Calculate the percentage yield of this process.
Give your answer to 3 significant figures.
81 exam-style questions on OCR GCSE Chemistry Improving processes and products. Each one has a worked solution and a mark scheme showing where the marks go.