Waec Model Questions Vol1 2024 Chemistry Question 19

Practice objective / multiple choice question 19 from the 2024 Waec Model Questions Vol1 Chemistry examination.

Waec Model Questions Vol1 2024 Chemistry Objective / Multiple Choice Medium Difficulty
Question 19 WAEC_MODEL_QUESTIONS_VOL1 • 2024 • CHEMISTRY • objective

The apparatus shown is used to collect a gas over water. A volume of 125.0 mL of hydrogen gas is collected at 25 °C and a total pressure of 1.00 atm. The vapor pressure of water at 25 °C is 23.8 mm Hg. Calculate the number of moles of hydrogen gas collected.

Answer Options

A. 5.40×10⁻³ mol
Correct Answer B. 4.95×10⁻³ mol
C. 5.11×10⁻³ mol
D. 1.60×10⁻⁴ mol
Correct Answer
B
Correct Option:
4.95×10⁻³ mol

About This Question

This is Waec Model Questions Vol1 2024 Chemistry Question 19. It is one of the objective questions from the 2024 Waec Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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