Conceptual Physical Science (6th Edition)
6th Edition
ISBN: 9780134060491
Author: Paul G. Hewitt, John A. Suchocki, Leslie A. Hewitt
Publisher: PEARSON
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Chapter 19, Problem 6RAT
Alkaloid salts are not very soluble in the organic solvent diethyl ether. What might happen to the free-base form of caffeine (an alkaloid) dissolved in diethyl ether if gaseous hydrogen chloride, HCl, were bubbled into the solution?
- (a) A second layer of water would form.
- (b) Nothing; the HCl gas would merely bubble out of solution.
- (c) The diethyl ether-insoluble caffeine salt would form as a white preciptitate.
- (d) The acid-base reaction would release heat, which would cause the diethyl ether to start evaporating.
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Chapter 19 Solutions
Conceptual Physical Science (6th Edition)
Ch. 19 - How do two structural isomers differ from each...Ch. 19 - How are two structural isomers similar to each...Ch. 19 - What physical property of hydrocarbons is used in...Ch. 19 - What types of hydrocarbons are more abundant in...Ch. 19 - To how many atoms is a saturated carbon atom...Ch. 19 - What is the difference between a saturated...Ch. 19 - How many multiple bonds must a hydrocarbon have in...Ch. 19 - What kind of ring do aromatic compounds contain?Ch. 19 - What is a heteroatom?Ch. 19 - Why do heteroatoms make such a difference in the...
Ch. 19 - Why are low-formula-mass alcohols soluble in...Ch. 19 - What distinguishes an alcohol from a phenol?Ch. 19 - What distinguishes an alcohol from an ether?Ch. 19 - Which heteroatom is characteristic of an amine?Ch. 19 - Do amines tend to be acidic, neutral, or basic?Ch. 19 - Are alkaloids found in nature?Ch. 19 - What are some examples of alkaloids?Ch. 19 - Which elements make up the carbonyl group?Ch. 19 - How are ketones and aldehydes related to each...Ch. 19 - How are amides and carboxylic acids related to...Ch. 19 - From what naturally occurring compound is aspirin...Ch. 19 - What happens to the double bond of a monomer...Ch. 19 - What is released in the formation of a...Ch. 19 - Why is plastic wrap made of polyvinylidene...Ch. 19 - Prob. 25RCQCh. 19 - Rank the following molecules in order of the phase...Ch. 19 - Rank the following hydrocarbons in order of...Ch. 19 - Rank the following hydrocarbons in order of...Ch. 19 - Rank the following organic molecules in order of...Ch. 19 - Rank the following organic molecules in order of...Ch. 19 - What property of carbon allows for the formation...Ch. 19 - Why does the melting point of hydrocarbons...Ch. 19 - Draw all the structural isomers for hydrocarbons...Ch. 19 - How many structural isomers are shown here?Ch. 19 - According to Figure 19.3, which has the higher...Ch. 19 - The temperatures in a fractionating tower at an...Ch. 19 - Prob. 40ECh. 19 - Do heavier hydrocarbons tend to produce more or...Ch. 19 - What do these two structures have in common?Ch. 19 - What do the compounds cyclopropane and propene...Ch. 19 - What are the chemical formulas for the following...Ch. 19 - Prob. 45ECh. 19 - Prob. 46ECh. 19 - Identify the following functional groups in this...Ch. 19 - What must be added to a double bond to transform...Ch. 19 - What do phenols and carboxylic acids have in...Ch. 19 - What is the difference between a ketone and an...Ch. 19 - Prob. 51ECh. 19 - Prob. 52ECh. 19 - What is the percent volume of water in 80-proof...Ch. 19 - One of the skin-irritating components of poison...Ch. 19 - Cetyl alcohol, C16H34O, is a common ingredient of...Ch. 19 - A common inactive ingredient in products such as...Ch. 19 - A common inactive ingredient in products such as...Ch. 19 - The phosphoric acid salt of caffeine has the...Ch. 19 - Prob. 59ECh. 19 - In water, does the following molecule act as an...Ch. 19 - If you saw the label phenylephrine-HCl on a...Ch. 19 - The amino acid lysine is shown below. What...Ch. 19 - Prob. 63ECh. 19 - Suggest an explanation why aspirin has a sour...Ch. 19 - Benzaldehyde is a fragrant oil. If stored in an...Ch. 19 - What products are formed upon the reaction of...Ch. 19 - The disodium salt of ethylenediaminetetraacetic...Ch. 19 - Would you expect polypropylene to be more dense or...Ch. 19 - Hydrocarbons release a lot of energy when ignited....Ch. 19 - The polymer styrene-butadiene rubber (SBR), shown...Ch. 19 - Citral and camphor are both 10-carbon odoriferous...Ch. 19 - Many of the natural product molecules synthesized...Ch. 19 - The solvent diethyl ether can be mixed with water...Ch. 19 - Alkaloid salts are not very soluble in the organic...Ch. 19 - Why does the melting point of hydrocarbons...Ch. 19 - How many structural isomers are there for...Ch. 19 - Which contains more hydrogen atoms: a five-carbon...Ch. 19 - Prob. 4RATCh. 19 - Why might a high-formula-mass alcohol be insoluble...Ch. 19 - Alkaloid salts are not very soluble in the organic...Ch. 19 - Explain why caprylic acid, CH3(CH2)6 COOH,...Ch. 19 - How many oxygen atoms are bonded to the carbon of...Ch. 19 - One solution to the problem of our overflowing...Ch. 19 - Which would you expect to be more viscous: a...
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