A-LevelChemistryAtoms, molecules and stoichiometryMay/June 2020Paper 1 Q91 Mark
The complete combustion of 2 moles of an alkane produces 400 dm³ of carbon dioxide measured at 301 K and 1 × 10⁵ Pa. Carbon dioxide can be assumed to behave as an ideal gas under these conditions. What is the formula of the alkane?
AC8H18
BC16H34
CC20H42
DC40H82
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The correct answer is A. This question tests the candidate's understanding of atoms, molecules and stoichiometry within the Chemistrysyllabus. The examiner's mark scheme requires...
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