Introduction To General, Organic, And Biochemistry
12th Edition
ISBN: 9781337571357
Author: Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher: Cengage Learning
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Chapter 10, Problem 48P
Urea, (NH.,)2CO, is used in plastics and in fertil izers. It is also the primary nitrogen-containing substance excreted by humans.
O
I
I
H
H
Urea
- Complete the Lewis structure of urea, showing all valence electrons.
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Urea, (NH2)2CO, is used in plastics and fertilizers. It is also the primary nitrogencontaining substance excreted by humans.(a) Which bonds in the molecule are polar, and which are nonpolar?(b) Which is the most polar bond in the molecule? Which atom is the negative end of the bond dipole?
Is CF2Cl2 a polar or nonpolar molecule?
CF 2Cl 2 belongs to a class of compounds called the chlorofl uorocarbons (CFCs), once widely used as refrigerants and aerosol propellants. Draw a Lewis structure for CF 2Cl 2 and label the polar bonds. Is CF 2Cl 2 a polar or nonpolar molecule?
Chapter 10 Solutions
Introduction To General, Organic, And Biochemistry
Ch. 10.3 - Prob. 10.1QCCh. 10.4 - Prob. 10.2QCCh. 10.4 - Prob. 10.3QCCh. 10.4 - Prob. 10.4QCCh. 10.4 - Prob. 10.5QCCh. 10.4 - Prob. 10.6QCCh. 10 - Prob. 1PCh. 10 - Prob. 2PCh. 10 - 10-9 Is there any difference between vanillin made...Ch. 10 - Prob. 4P
Ch. 10 - 10-11 What important experiment did Wohler carry...Ch. 10 - Prob. 6PCh. 10 - Prob. 7PCh. 10 - Prob. 8PCh. 10 - 10-15 How many electrons are in the valence shell...Ch. 10 - 10-16 What is the relationship between the number...Ch. 10 - Prob. 11PCh. 10 - Prob. 12PCh. 10 - 10-19 Write Lewis structures for these ions. (a)...Ch. 10 - 10-20 Why are the following molecular formulas...Ch. 10 - 10-21 Explain how to use the valence-shell...Ch. 10 - 10-22 Suppose you forget to take into account the...Ch. 10 - Suppose you forget to take into account the...Ch. 10 - Prob. 18PCh. 10 - Prob. 19PCh. 10 - Prob. 20PCh. 10 - 10-27 What is meant by the term functional group?Ch. 10 - 10-28 List three reasons why functional groups are...Ch. 10 - Prob. 23PCh. 10 - Prob. 24PCh. 10 - Prob. 25PCh. 10 - 10-32 Draw a structural formula for the one...Ch. 10 - 10-33 What is the meaning of the term tertiary (...Ch. 10 - Prob. 28PCh. 10 - Draw structural formulas for each of the...Ch. 10 - 10-36 Draw structural formulas for the six ketones...Ch. 10 - 10-37 Draw structural formulas for the eight...Ch. 10 - Prob. 32PCh. 10 - 10-39 (Chemical Connections 10A) How was Taxol...Ch. 10 - Prob. 34PCh. 10 - Prob. 35PCh. 10 - Silicon is immediately below carbon in Group 4A of...Ch. 10 - 10-43 Phosphorus is immediately below nitrogen in...Ch. 10 - Draw the structure for a compound with the...Ch. 10 - 10-45 Draw structural formulas for the eight...Ch. 10 - Prob. 40PCh. 10 - 10-47 Which of these covalent bonds are polar, and...Ch. 10 - Of the bonds in Problem 10-47, which is the most...Ch. 10 - Prob. 43PCh. 10 - Prob. 44PCh. 10 - Following is a structural formula for naphthalene....Ch. 10 - Prob. 46PCh. 10 - Prob. 47PCh. 10 - Urea, (NH.,)2CO, is used in plastics and in fertil...Ch. 10 - Prob. 49PCh. 10 - Prob. 50PCh. 10 - Aspirin is prepared by the reaction of salicylic-...Ch. 10 - Following is the structural formula of acetamide....Ch. 10 - Prob. 53P
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- Given the bonds C N, C H, C Br, and S O, (a) which atom in each is the more electronegative? (b) which of these bonds is the most polar?arrow_forwardhat does temperature measure? Are the molecules in a beaker of warm water moving at the same speed as the molecules in a beaker of cold water? Explain? What is heat? Is heat the same as temperature?arrow_forwardMolecules in space: (a) In addition to molecules such as CO, HCl, H2O, and NH3, glycolaldehyde has been detected in outer space. Is the molecule polar? (b) Where do the positive and negative charges lie in the molecule? (c) One molecule found in the 1995 Hale-Bopp comet is HC3N. Suggest a structure for this molecule.arrow_forward
- Successive substitution of F atoms for H atoms in the molecule CH4 produces the molecules CH3F, CH2F2, CHF3, and CF4. a. Draw Lewis structures for each of the five molecules. b. Using VSEPR theory, predict the geometry of each of the five molecules. c. Specify the polarity (polar or nonpolar) for each of the five molecules.arrow_forwardIn addition to CO, CO2, and C3O2, there is another molecular oxide of carbon, pentacarbon dioxide, C5O2, a yellow solid. (a) What is the approximate C-to-C-to-O bond angle in pentacarbon dioxide? (b) What is the approximate C-to-C-to-C bond angle in this compound?arrow_forwardSuccessive substitution of F atoms for H atoms in the molecule NH3 produces the molecules NH2F, NHF2, and NF3. a. Draw Lewis structures for each of the four molecules. b. Using VSEPR theory, predict the geometry of each of the four molecules. c. Specify the polarity (polar or nonpolar) for each of the four molecules.arrow_forward
- 3-106 Consider the structure of Penicillin G shown below, an antibiotic used to treat bacterial infections caused by gram-positive organisms, derived from Penicillium fungi: (a) Identify the various types of geometries present in each central atom using VSEPR theory. (b) Determine the various relative bond angles associated with each central atom using VSEPR theory (c) Which is the most poiar bond in Penicillin G? (d) Would you predict Penicillin G to be polar or nonpolar?arrow_forward3. The following are some molecules:H2, HF, CO2, H2O, Cl2, NH3, CH4, CHCl3 (a) Which of the above molecules do/does not contain polar bond? Explain your answer. (b) Which covalent bond has the highest bond polarity among the eight molecules? (c) (i) Which of the above molecules are non-polar molecules? (ii) Explain why these molecules are non-polar. 4. (d) Draw a diagram to illustrate the formation of hydrogen bonds in H2O.arrow_forwardIf a hypothetical atom X contains 7 valence electrons, then what is the approximate O-X-O bond angle in XO3-1 ?arrow_forward
- 1. Potassium reacts violently with water, yet the WHO recommends a potassium intake of at least 3.5 g per day for adults. Why doesn’t potassium react violently when eaten, even though the human body is about 70% water? Describe the difference in terms of atomic structure and energy. 2. What makes Lewis structures successful in this regard, and where does its predictive power end? 3. CH4 and CH3Cl are both tetrahedral molecules, but their polarities are different. Explain the reason for this difference. Draw the Lewis structures of both molecules, indicate the numerical electronegativity difference for every bond, and indicate whether each bond is polar or nonpolar.arrow_forward1. In its Lewis dot symbol, which element would have four (4) dots? Select one: a.Si b.F c.N d.S 2. Which compound is expected to be soluble in a polar solvent? Select one: a.CH4 b.NH3 c.None of these. d.BF3 3. Which compound is nonpolar? Select one: a.CO2 b.None of these. c.HCl d.H2O 4. In HCN, the formal charge on nitrogen is Select one: a.+1 b.0 c.–1 d.None of these. 5. For the carbonate anion, CO3–2, the number of contributing equienergetic resonance structures is Select one: a.3 b.4 c.1 d. 2arrow_forwardCCl4is a nonpolar molecule, while CHCl3and CH2Cl2are polar molecules. Draw the Lewis structures of these three molecules. Explain the observation in the polarity of the molecules.arrow_forward
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