Igcse Model Questions Vol1 2018 Chemistry Question 26
Practice objective / multiple choice question 26 from the 2018 Igcse Model Questions Vol1 Chemistry examination.
A liquid mixture of ethanol and a non‑carbon impurity has a density of \(0.789\ \text{g\,mL}^{-1}\). When \(10.0\ \text{mL}\) of the mixture is completely combusted, \(2.30\ \text{L}\) of \(\text{CO}_{2}\) are collected at STP. Assuming the impurity does not contain carbon, calculate the mass percentage of ethanol in the mixture. Give your answer to the nearest whole percent.
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About This Question
This is Igcse Model Questions Vol1 2018 Chemistry Question 26. It is one of the objective questions from the 2018 Igcse Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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