Gce Model Questions Vol1 2024 Chemistry Question 20

Practice objective / multiple choice question 20 from the 2024 Gce Model Questions Vol1 Chemistry examination.

Gce Model Questions Vol1 2024 Chemistry Objective / Multiple Choice Medium Difficulty
Question 20 GCE_MODEL_QUESTIONS_VOL1 • 2024 • CHEMISTRY • objective

0.500 mol of sodium carbonate (\(\mathrm{Na_2CO_3}\)) is dissolved in enough water to make 1.00 L of solution. Excess hydrochloric acid is added, and the carbon dioxide produced is collected over water at 25 °C and a total pressure of 760 mm Hg. The volume of gas collected is 11.2 L. (i) Calculate the moles of dry \(\mathrm{CO_2}\) collected. (ii) What percentage of the original sodium carbonate has reacted?

Answer Options

Correct Answer A. Moles of CO₂ = 0.443 mol; percentage reacted = 88.5 %
B. Moles of CO₂ = 0.500 mol; percentage reacted = 100 %
C. Moles of CO₂ = 0.457 mol; percentage reacted = 91.4 %
D. Moles of CO₂ = 0.400 mol; percentage reacted = 80.0 %
Correct Answer
A
Correct Option:
Moles of CO₂ = 0.443 mol; percentage reacted = 88.5 %

About This Question

This is Gce Model Questions Vol1 2024 Chemistry Question 20. It is one of the objective questions from the 2024 Gce Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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