Gce Model Questions Vol1 2023 Chemistry Question 8

Practice objective / multiple choice question 8 from the 2023 Gce Model Questions Vol1 Chemistry examination.

Gce Model Questions Vol1 2023 Chemistry Objective / Multiple Choice Medium Difficulty
Question 8 GCE_MODEL_QUESTIONS_VOL1 • 2023 • CHEMISTRY • objective

2.00 g of magnesium metal reacts with excess hydrochloric acid according to \(\text{Mg}+2\text{HCl}\rightarrow\text{MgCl}_{2}+\text{H}_{2}\). The hydrogen gas is collected over water at 25 °C and a total pressure of 750 mm Hg. The volume of wet gas collected is 0.650 L. (Water vapour pressure at 25 °C is 23.8 mm Hg.) Calculate the percent yield of hydrogen (use \(R=0.082057\,\text{L·atm·K}^{-1}\text{mol}^{-1}\)).

Answer Options

Correct Answer A. 29.9
B. 41.2
C. 33.5
D. 25.0
Correct Answer
A
Correct Option:
29.9

About This Question

This is Gce Model Questions Vol1 2023 Chemistry Question 8. It is one of the objective questions from the 2023 Gce Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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