A combustion analysis of a 0.4647-g sample of a compound known to contain only carbon, hydrogen, and oxygen yielded 0.8635 g of CO2 and 0.1767 g of H2O. What is the empirical and molecular formula of the compound if the molar mass of the compound is 142 g/mol?

A combustion analysis of a 0.4647-g sample of a compound known to contain only carbon, hydrogen, and oxygen yielded 0.8635 g of CO2 and 0.1767 g of H2O. What is the empirical and molecular formula of the compound if the molar mass of the compound is 142 g/mol?

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter3: Equation, The Mole, And Chemical Formulas

Section: Chapter Questions

Problem 3.113QE

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.

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A combustion analysis of a 0.4647-g sample of a compound known to contain only carbon,
hydrogen, and oxygen yielded 0.8635 g of CO2 and 0.1767 g of H2O. What is the empirical and molecular
formula of the compound if the molar mass of the compound is 142 g/mol?

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