Question Detail

CHM 102 Qualitative and Quantitative Analysis in Organic Chemistry Objective Question
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Question

What is the formula for calculating the percentage of carbon from Liebig's combustion data?
Options
A %C = (12/44) × (mass of CO₂ / mass of sample) × 100
Correct Answer
B %C = (44/12) × (mass of CO₂ / mass of sample) × 100
C %C = (12/44) × (mass of sample / mass of CO₂) × 100
D %C = (44/12) × (mass of sample / mass of CO₂) × 100
Correct Answer

Option A is the correct answer.

Detailed Explanation

Mass of carbon = (12/44) × mass of CO₂. Then %C = (mass C / mass sample) × 100 = (12/44) × (mass CO₂ / mass sample) × 100.

Hint

12/44 factor from molar masses.

Question Info

Course: CHM 102
Topic: Qualitative and Quantitative Analysis in Organic Chemistry
Type: Objective
Difficulty: Not specified
Question 823 of 1999
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