Waec Model Questions Vol1 2022 Chemistry Question 30
Practice objective / multiple choice question 30 from the 2022 Waec Model Questions Vol1 Chemistry examination.
An unknown alkane contains 8 carbon atoms. Its combustion releases 3.65×10⁶ J per mole of the alkane. Determine the empirical formula of the alkane and calculate the standard enthalpy change for its combustion per gram of the alkane (in kJ·g⁻¹, rounded to one decimal place). Use ΔcH°(CO₂) = -393.5 kJ·mol⁻¹ and ΔcH°(H₂O,l) = -285.8 kJ·mol⁻¹.
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About This Question
This is Waec Model Questions Vol1 2022 Chemistry Question 30. It is one of the objective questions from the 2022 Waec Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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