Igcse Model Questions Vol1 2019 Chemistry Question 1
Practice objective / multiple choice question 1 from the 2019 Igcse Model Questions Vol1 Chemistry examination.
A gas collection over water apparatus is used to collect hydrogen gas produced when magnesium reacts with excess hydrochloric acid. The graduated cylinder reading is \(125.0\ \text{mL}\) at \(25\ ^\circ\text{C}\). Atmospheric pressure is \(760\ \text{mm\,Hg}\) and the water vapour pressure at \(25\ ^\circ\text{C}\) is \(23.8\ \text{mm\,Hg}\). The mass of magnesium used is \(0.0300\ \text{g}\). Using the diagram, determine which reactant is the limiting reagent and calculate the number of moles of hydrogen gas actually produced.
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About This Question
This is Igcse Model Questions Vol1 2019 Chemistry Question 1. It is one of the objective questions from the 2019 Igcse Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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