Waec Model Questions Vol1 2021 Chemistry Question 13

Practice objective / multiple choice question 13 from the 2021 Waec Model Questions Vol1 Chemistry examination.

Waec Model Questions Vol1 2021 Chemistry Objective / Multiple Choice Medium Difficulty
Question 13 WAEC_MODEL_QUESTIONS_VOL1 • 2021 • CHEMISTRY • objective

When 5.00 g of aluminium is reacted with excess hydrochloric acid, 4.50 L of hydrogen gas is collected at 25 °C and 1.00 atm. Calculate the percent yield of hydrogen gas. (R = 0.0821 L·atm·mol⁻¹·K⁻¹)

Answer Options

A. 78.9 %
Correct Answer B. 66.2 %
C. 62.5 %
D. 55.0 %
Correct Answer
B
Correct Option:
66.2 %

About This Question

This is Waec Model Questions Vol1 2021 Chemistry Question 13. It is a objective / multiple choice question from the 2021 Waec Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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