Neco Model Questions Vol1 2017 Chemistry Question 40
Practice objective / multiple choice question 40 from the 2017 Neco Model Questions Vol1 Chemistry examination.
In the apparatus shown, \(0.500\ \text{g}\) of zinc reacts with excess hydrochloric acid at \(25^{\circ}\text{C}\), producing hydrogen gas collected over water. The volume of gas collected is \(620\ \text{mL}\). The total pressure is \(760\ \text{mmHg}\) and the water vapour pressure at this temperature is \(23.8\ \text{mmHg}\). Calculate the number of moles of \(\mathrm{H_2}\) gas produced.
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About This Question
This is Neco Model Questions Vol1 2017 Chemistry Question 40. It is one of the objective questions from the 2017 Neco Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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