Answered: A compound is 80.0% carbon and 20.0%…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

A compound is 80.0% carbon and 20.0% hydrogen by mass. Assume a 100.-g sample of this compound. The moles in each element are 6.66 and 19.8 what is the empirical formula of this compound? Express your answer as a chemical formula.

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Step 1

Given,

Mass % of C = 80.0 %

Mass % of H = 20.0 %

Mass of the compound = 100 g

Empirical formula of the compound = ?

Note:

molar mass of C = 12.011 g/mol

molar mass of H = 1.00784 g/mol

Empirical formula: it can be defined as the simplest whole number ratio of different atoms in the compound.

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