Igcse Model Questions Vol1 2024 Chemistry Question 15
Practice objective / multiple choice question 15 from the 2024 Igcse Model Questions Vol1 Chemistry examination.
A \(0.500\) g sample of a metal M is reacted with excess hydrochloric acid. The hydrogen gas produced is collected over water at \(298\) K and a total pressure of \(750\) mmHg. The water vapour pressure at this temperature is \(23.8\) mmHg and the volume of gas collected is \(85.0\) mL. The experiment is later found to have a \(78\)% yield of hydrogen relative to the theoretical amount. (M reacts according to \(\mathrm{M + 2\,HCl \rightarrow MCl_2 + H_2}\).) Determine the mass of metal M that actually took part in the reaction.
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This is Igcse Model Questions Vol1 2024 Chemistry Question 15. It is one of the objective questions from the 2024 Igcse Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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