Concept explainers
Interpretation: Empirical and molecular formula of the hydrocarbon must be found for which the % of C is 81.71 and molar mass is 44.1 g/mol.
Concept Introduction :
Empirical formula of a molecule is the smallest unit which is repeated in the molecule.
Molecular formula of a compound is the representation of the molecule with the number of different atoms present in the molecule.
Molecular formula
Answer to Problem 50A
The empirical formula is C3H8and molecular formula is also C3H8.
Explanation of Solution
The molecular formula can be found from the empirical formula using the following relationship.
Molecular formula
% of C
Moles of C
Smallest mole ratio C: H
Thus empirical formula is C3H8.
Now molar mass 44.1= (C3H8) n or, n
Thus molecular formula is C3H8.
Molecular formula as well as empirical formula of the compound is C3H8.
Chapter 6 Solutions
World of Chemistry
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY