Answered: 2. A compound contains 43.38 percent…

2. A compound contains 43.38 percent Na, 11.33 percent C, and 45.29 percent oxygen. What is the empirical formula of this compound.

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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Concept explainers

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.

Question

answer 2

1. An organic compound was found to
contain 54.5% C, 9.2% H, and 36.3% O.
a. What is the empirical formula of the
compound?
b. If the molar mass of the compound is
88.1 g/mol, what is its molecular formula?
2. A compound contains 43.38 percent Na,
11.33 percent C, and 45.29 percent oxygen.
What is the empirical formula of this
compound.
3. A compound has a percent composition
of 40.0 % carbon, 6.71% hydrogen and
the rest is oxygen.What is the empirical
formula of the compound?
4. The molecular weight of caffeine is 194
and the empirical formula is C4H5N2O.
What is the molecular formula of caffeine?

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