Neco Model Questions Vol1 2023 Chemistry Question 39

Practice objective / multiple choice question 39 from the 2023 Neco Model Questions Vol1 Chemistry examination.

Neco Model Questions Vol1 2023 Chemistry Objective / Multiple Choice Medium Difficulty
Question 39 NECO_MODEL_QUESTIONS_VOL1 • 2023 • CHEMISTRY • objective

A \(1.25\ \text{g}\) mixture of ethane (C₂H₆) and propane (C₃H₈) is burned completely in excess oxygen, producing \(3.70\ \text{g}\) of CO₂ and \(2.16\ \text{g}\) of H₂O. Determine the mass percent of each hydrocarbon in the original mixture.

Answer Options

Correct Answer A. Ethane ≈ 57.8 %, Propane ≈ 42.2 %
B. Ethane ≈ 45.0 %, Propane ≈ 55.0 %
C. Ethane ≈ 50.0 %, Propane ≈ 50.0 %
D. Ethane ≈ 62.5 %, Propane ≈ 37.5 %
Correct Answer
A
Correct Option:
Ethane ≈ 57.8 %, Propane ≈ 42.2 %

About This Question

This is Neco Model Questions Vol1 2023 Chemistry Question 39. It is one of the objective questions from the 2023 Neco Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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