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Concept explainers
Azo dyes are organic dyes that are used for many applications, such as the coloring of fabrics. Many azo dyes are derivatives of the organic substance azobenzene, Cl2H10N2. A closely related substance is hydrazobenzene, Cl2H12N2. The Lewis structures of these two substances are
(Recall the shorthand notation used for benzene.)
a. What is the hybridization at the N atom in each of the substances?
b. How many unhybridized atomic orbitals are there on the N and the C atoms in each of the substances?
c. Predict the N-N-C angles in each of the substances.
d. Azobenzene is said to have greater delocalization of its p electrons than hydrazobenzene. Discuss this statement in light of your answers to (a) and (b).
e. All the atoms of azobenzene lie in one plane, whereas those of hydrazobenzene do not. Is this observation consistent with the statement in part (d)?
f. Azobenzene is an intense red-orange color, whereas hydrazobenzene is nearly colorless. Which molecule would be a better one to use in a solar energy conversion device? (See the "Chemistry Put to Work" box for more information about solar cells.)
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Chapter 17 Solutions
Laboratory Experiments for Chemistry: The Central Science (13th Edition)
- The reaction of 2-oxacyclopentanone with hydrochloric acid in water (i.e., "excess") produces which of the following carboxylic acids?arrow_forwardDon't used hand raiting and don't used Ai solutionarrow_forwardWhat is the name of the major product formed during the reaction between benzoyl chloride and phenol? benzyl ester O phenyl benzoate ○ cyclopentanoate ○ benzyl phenoate ○ benzenecarboxylic acidarrow_forward
- Provide the proper IUPAC or common name for the following compound. Dashes, commas, and spaces must be used correctly.arrow_forwardProvide the proper IUPAC name (only) for the following compound. Dashes, commas, and spaces must be used correctly. HO. OHarrow_forwardQuestion 2 0/1 pts Provide the proper IUPAC name only for the following compound. Dashes, commas, and spaces must be used correctly. HO CH 3 1-methyl-1-cyclohexanecarboxylic acidarrow_forward
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