AS Chemistry Examiner report Paper 2 June 2018 - Revisely

REPORT ON THE EXAMINATION – AS LEVEL CHEMISTRY – 7404/2 – JUNE 2018: Question 21 Number of molecules in a gas : Most students (70.6%) could correctly find the number of molecules in a sample of propane. The most common incorrect answer used C: 3: H: 6: rather than C: 3: H: 8: as the formula of propane. ................
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