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Chemistry an Introduction to General, Organic, and Biological Chemistry

1365 SOLVED PROBLEMS

Question: CI.39

Butter is a fat that contains 80.% by mass triacylglycerols; the rest is water. Assume the triacylglycerol in butter is glyceryl tripalmitate. (2.4, 2.5, 2.6, 7.2, 7.6, 14.4, 18.7) a. Write the balanced chemical equation for the hydrolysis of glyceryl tripalmitate. b. What is the molar mass of ...

Verified Answer:

a.\begin{array}{lllll} &O \\ &|| \\...
Question: CI.37

Acetyl CoA is the fuel for the citric acid cycle. It has the formula C23H38N7O17P3S. (7.2, 18.3, 18.5) a. What are the components of acetyl CoA? b. What is the function of acetyl CoA? c. Where does the acetyl group attach to CoA? d. What is the molar mass, to three significant figures, of acetyl ...

Verified Answer:

a. aminoethanethiol, pantothenic acid, phosphoryla...
Question: CI.35

Identify each of the following as a substance that is part of the citric acid cycle, electron transport, or both: (18.4, 18.5, 18.6) a. succinate b. CoQH2 c. FAD d. cyt c e. H2O f. malate g. NAD^+ ...

Verified Answer:

a. citric acid cycle            b. electron transp...
Question: CI.33

Beano contains an enzyme that breaks down polysaccharides into mono- and disaccharides that are more digestible. It is used to diminish gas formation that can occur after eating foods such as beans or cruciferous vegetables like cabbage, Brussels sprouts, and broccoli. (16.4, 16.5)a. The label on ...

Verified Answer:

a. An alpha-galactosidase is a hydrolase. b. The s...
Question: CI.31

Panose is a trisaccharide that is being considered as a possible sweetener by the food industry. (13.4, 13.5, 13.6) a. What are the monosaccharide units A, B, and C in panose? b. What type of glycosidic bond connects monosaccharides A and B? c. What type of glycosidic bond connects monosaccharides ...

Verified Answer:

a. A, B, and C are all glucose. b. An α(1→6)-glyco...
Question: CI.29

The insect repellent DEET is an amide that can be made from the amidation of 3-methylbenzoic acid with diethylamine. A 6.0-fl oz can of DEET repellent contains 25% DEET (m/v) (1 qt = 32 fl oz). (7.2, 7.3, 9.4, 14.6) a. Draw the line-angle formula for DEET. b. Give the molecular formula for DEET. ...

Verified Answer:

a. b. C_{12}H_{17}NO c. 191.3 g/mo...
Question: CI.27

The plastic known as PETE (polyethyleneterephthalate) is used to make plastic soft drink bottles and containers for salad dressing, shampoos, and dishwashing liquids. PETE is made from terephthalic acid and ethylene glycol. Today, PETE is the most widely recycled of all the plastics. In one year, ...

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a. b. c. 6.8 × 10^8 kg of PETE d. ...
Question: CI.25

Butyraldehyde is a clear liquid solvent with an unpleasant odor. It has a low boiling point and is highly flammable. Butyraldehyde has a density of 0.802 g/mL. (7.4, 7.8, 8.6, 12.3, 12.4) a. Draw the condensed structural formula for butyraldehyde. b. Draw the line-angle formula for butyraldehyde. ...

Verified Answer:

a. \begin{matrix} & O & \\ & ||...
Question: CI.23

Acetone (propanone), a clear liquid solvent with an acrid odor,is used to remove nail polish, paints, and resins. It has a low boiling point and is highly flammable. Acetone has a density of 0.786 g/mL. (6.7, 7.2, 7.4, 7.8, 12.3) a. What is the molecular formula of acetone? b. What is the molar ...

Verified Answer:

a. \mathrm{C}_3 \mathrm{H}_6 \mathrm{O}[/la...
Question: CI.21

A metal (M) completely reacts with 34.8 mL of a 0.520 M HCl solution to form MCl3(aq) and H2(g). (4.1, 7.2, 7.4, 7.7, 8.6,10.7) a. Write the balanced chemical equation for the reaction of the metal M(s) and HCl(aq). b. What volume, in milliliters, of H2 is produced at STP? c. How many moles of ...

Verified Answer:

a. 2 \mathrm{M}(s)+6 \mathrm{HCl}(a q) \lon...
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