Please Help 28.Given the empirical formula of NO2 and a molar mass of 92.0 g/mol, what is themolecular formula?29.A compound has the composition: carbon 37.21%; hydrogen 7.83%; and chlorine54.96%. If its molar mass is 385 g/mol, determine (a) the empirical formula (b) themolecular formula.30.A hydrocarbon has a molar mass of 114 g/mol and has a composition of carbon84.06% and hydrogen 15.94%. What is its (a) empirical formula (b) true formula?

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Chemistry

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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

Chapter3: Stoichiometry

Section: Chapter Questions

Problem 149AE: A sample of a hydrocarbon (a compound consisting of only carbon and hydrogen) contains 2.59 1023...

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Concept explainers

Micelles and Biological Membrane

Micelles are the type of lipid molecules that organize themselves in spherical shape in aqueous solutions. The production of the micelle is a reply to the amphipathic behavior of fatty acids. It means that they consist of both hydrophobic regions and hydrophilic regions. In micelles, polar head groups (hydrophilic groups) produce an outer layer associated with water whereas nonpolar tails (hydrophobic groups) are organized in the interior.

Question

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28.
Given the empirical formula of NO2 and a molar mass of 92.0 g/mol, what is the
molecular formula?
29.
A compound has the composition: carbon 37.21%; hydrogen 7.83%; and chlorine
54.96%. If its molar mass is 385 g/mol, determine (a) the empirical formula (b) the
molecular formula.
30.
A hydrocarbon has a molar mass of 114 g/mol and has a composition of carbon
84.06% and hydrogen 15.94%. What is its (a) empirical formula (b) true formula?

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