Neco Model Questions Vol1 2021 Chemistry Question 14

Practice objective / multiple choice question 14 from the 2021 Neco Model Questions Vol1 Chemistry examination.

Neco Model Questions Vol1 2021 Chemistry Objective / Multiple Choice Medium Difficulty
Question 14 NECO_MODEL_QUESTIONS_VOL1 • 2021 • CHEMISTRY • objective
Neco Model Questions Vol1 2021 Chemistry Question 14 diagram

In the apparatus shown, hydrogen gas is collected over water at 25 °C. The dry gas syringe reads a volume of 125.0 mL. The atmospheric pressure is 760 mm Hg and the vapor pressure of water at 25 °C is 23.8 mm Hg. Calculate the number of moles of hydrogen collected.

Answer Options

A. 5.12×10⁻³ mol
Correct Answer B. 4.96×10⁻³ mol
C. 5.00×10⁻³ mol
D. 4.20×10⁻³ mol
Correct Answer
B
Correct Option:
4.96×10⁻³ mol

About This Question

This is Neco Model Questions Vol1 2021 Chemistry Question 14. It is one of the objective questions from the 2021 Neco Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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