Introduction to General, Organic and Biochemistry
11th Edition
ISBN: 9781285869759
Author: Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher: Cengage Learning
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Textbook Question
Chapter 18, Problem 18.17P
18-17 Hexanoic (caproic) acid has a solubility in water of about 1 g/100 mL water. Which part of the molecule contributes to water solubility, and which part prevents solubility?
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18-17 Hexanoic (caproic) acid has a solubility in water of
about 1 g/100 mL water. Which part of the molecule
contributes to water solubility,'and which
part
prevents solubility?
The purity of the aspirin sample is tested with
iron (III) chloride. A purple color resulting from
iron (III) chloride test indicates
the aspirin sample contains some unreacted
salicylic acid and the carboxylic acid group in
salicylic acid gives a purple color.
the structure of aspirin itself contains a
phenolic -OH group.
O the aspirin sample contains some unreacted
salicylic acid and the phenolic -OH group in
salicylic acid gives a purple color.
the aspirin sample contains some unreacted
salicylic acid and the ring structure in
salicylic acid gives a purple color.
True or False: Carboxylic acids containing six or more carbon atoms per molecule are more soluble indiethyl ether than in water.
Chapter 18 Solutions
Introduction to General, Organic and Biochemistry
Ch. 18.2 - Prob. 18.1PCh. 18.5 - Prob. 18.2PCh. 18.5 - Prob. 18.3PCh. 18 - 18-4 Answer true or false. (a) The functional...Ch. 18 - Prob. 18.5PCh. 18 - 18-6 Name and draw structural formulas for the...Ch. 18 - 18-7 Write the IUPAC name for each carboxylic...Ch. 18 - 18-8 Write the IUPAC name for each carboxylic...Ch. 18 - Prob. 18.9PCh. 18 - Prob. 18.10P
Ch. 18 - Prob. 18.11PCh. 18 - Prob. 18.12PCh. 18 - Prob. 18.13PCh. 18 - 18-14 Answer true or false. (a) Carboxylic acids...Ch. 18 - 18-15 Draw a structural formula for the dimer...Ch. 18 - 18-16 Propanedioic (malonic) acid forms an...Ch. 18 - 18-17 Hexanoic (caproic) acid has a solubility in...Ch. 18 - 18-18 Propanoic acid and methyl acetate are...Ch. 18 - 18-19 The following compounds have approximately...Ch. 18 - Prob. 18.20PCh. 18 - Prob. 18.21PCh. 18 - Prob. 18.22PCh. 18 - 18-23 Characterize the structural features...Ch. 18 - Prob. 18.24PCh. 18 - Prob. 18.25PCh. 18 - 18-26 Answer true or false. (a) Carboxylic acids...Ch. 18 - Prob. 18.27PCh. 18 - 18-28 Arrange these compounds in order of...Ch. 18 - 18-29 Complete the equations for these acid—base...Ch. 18 - 18-30 Complete the equations for these acid-base...Ch. 18 - 18-31 Formic acid is one of the components...Ch. 18 - Prob. 18.32PCh. 18 - Prob. 18.33PCh. 18 - Prob. 18.34PCh. 18 - Prob. 18.35PCh. 18 - Prob. 18.36PCh. 18 - Prob. 18.37PCh. 18 - 18-38 Which is the stronger base: CH3CH2NH2 or...Ch. 18 - Prob. 18.39PCh. 18 - Prob. 18.40PCh. 18 - 18-41 Complete these examples of Fischer...Ch. 18 - Prob. 18.42PCh. 18 - Prob. 18.43PCh. 18 - Prob. 18.44PCh. 18 - Prob. 18.45PCh. 18 - 18-46 Procaine (its hydrochloride salt is marketed...Ch. 18 - 18-47 Methylparaben and propylparaben are used as...Ch. 18 - 18-48 4-Aminobenzoic acid is prepared from benzoic...Ch. 18 - Prob. 18.49PCh. 18 - Prob. 18.50PCh. 18 - Prob. 18.51PCh. 18 - Prob. 18.52PCh. 18 - Prob. 18.53PCh. 18 - Prob. 18.54PCh. 18 - Prob. 18.55P
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- 18-31 Formic acid is one of the components responsible for the sting of biting ants and is injected under the skin by bee and wasp stings. The pain can be relieved by rubbing the area of the sting with a paste of baking soda (NaHCO3) and water, which neutralizes the acid. Write an equation for this reaction.arrow_forward8 (Chemical Connections 19C) Once it has been opened, and particularly if it has been left open to the air, a bottle of aspirin may develop a vinegar-like odor. Explain how this might happen.arrow_forward18-47 Methylparaben and propylparaben are used as preservatives in foods, beverages, and cosmetics. Show how each of these preservatives can be prepared from 4-aminobenzoic acid.arrow_forward
- 16-13 Classify each amino group as primary, secondary, or tertiary and as aliphatic or aromatic. Serotonin (a neurotransmitter) Diphenhydramine (the hydrochloride salt is the antihistamine Benadryl) Lysine (an amino acid)arrow_forward18-19 The following compounds have approximately the same molecular weight: hexanoic acid, heptanal, and 1-heptanol. Arrange them in order of increasing boiling point.arrow_forward8 In Chapter 22, we will discuss a class of compounds called amino acids, so named because they contain both an amino group and a carboxyl group. Following is a structural formula for the amino acid alanine. What would you expect to be the major form of alanine present in aqueous solution (a) at pH 2.0, (b) at pH 5—6, and (c) at pH 11.0? Explain.arrow_forward
- According to the publication, what's a porphyrin and what general roles do porphyrins play in an organismarrow_forwardIn the empty box, provide appropriate reagents and reaction conditions necessary to convert Salicylic Acid to Aspirin. HO 2 OH Salicylic Acid OH Aspirinarrow_forwardWrite the products of the reaction of diphenhydramine (a base) with the acid HCI shown below. H COCH₂CH₂NCH3 + HC1 CH3 Consider the chemical reaction from the previous question. Are the reactants or products more soluble in water? Briefly explain.arrow_forward
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