Gce Model Questions Vol1 2018 Chemistry Question 42
Practice objective / multiple choice question 42 from the 2018 Gce Model Questions Vol1 Chemistry examination.
A sample containing 5.00 g of magnesium metal is reacted with excess hydrochloric acid according to \(\mathrm{Mg + 2HCl \rightarrow MgCl_{2} + H_{2}}\). The hydrogen gas produced is collected over water at 25 °C and a total pressure of 750 mm Hg. The vapour pressure of water at 25 °C is 23.8 mm Hg. If the dry hydrogen collected occupies 0.850 L, determine the mass of magnesium that actually reacted.
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About This Question
This is Gce Model Questions Vol1 2018 Chemistry Question 42. It is one of the objective questions from the 2018 Gce Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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