Organic Chemistry (8th Edition)
8th Edition
ISBN: 9780134042282
Author: Paula Yurkanis Bruice
Publisher: PEARSON
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Chapter 1.15, Problem 43P
Caffeine is a natural insecticide found in the seeds and leaves of certain plants, where it kills insects that feed on the plant. Caffeine is extracted for human consumption from beans of the coffee plant, from Kola nuts, and from the leaves of tea plants. Because it stimulates the central nervous system, it temporarily prevents drowsiness. Add caffeine’s missing lone pairs to its structure.
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Chapter 1 Solutions
Organic Chemistry (8th Edition)
Ch. 1.1 - Oxygen has three isotopes, 16O, 17O, and 18O. The...Ch. 1.1 - a. How many protons do the following species...Ch. 1.1 - Chlorine has two isotopes, 35Cl and 37Cl; 75.77%...Ch. 1.2 - Prob. 4PCh. 1.2 - a. Write the ground-state electronic configuration...Ch. 1.2 - Look at the relative positions of each pair of...Ch. 1.3 - a. Find potassium (K) in the periodic table and...Ch. 1.3 - Which bond is more polar? a. b. c. d.Ch. 1.3 - Which of the following has a. the most polar bond?...Ch. 1.3 - Use the symbols + and to show the direction of...
Ch. 1.3 - Explain why HCL has a smaller dipole moment than...Ch. 1.3 - After examining the potential maps for LiH, HF,...Ch. 1.4 - An atom with a formal charge does not necessarily...Ch. 1.4 - Prob. 16PCh. 1.4 - a. Draw two Lewis structure for C2H6O. b. Draw...Ch. 1.4 - Draw the lone-pair electrons that are not shown in...Ch. 1.4 - Prob. 20PCh. 1.4 - Which of the atoms in the molecular models in...Ch. 1.4 - Prob. 22PCh. 1.4 - Prob. 23PCh. 1.5 - Draw the following orbitals: a. 3s orbital b. 4s...Ch. 1.6 - Prob. 25PCh. 1.6 - Indicate the kind of molecular orbital (, , , or )...Ch. 1.7 - What orbitals are used to form the 10 sigma bonds...Ch. 1.7 - Explain why a bond formed by overlap of s orbital...Ch. 1.9 - Put n number in each of the blanks: a. __ s...Ch. 1.9 - For each of the given species: a. Draw its Lewis...Ch. 1.11 - Predict the approximate bond angles in a. the...Ch. 1.11 - According to the potential map for the ammonium...Ch. 1.12 - Prob. 35PCh. 1.13 - a. What are the relative lengths and strengths of...Ch. 1.13 - Prob. 38PCh. 1.14 - Describe the orbitals used in bonding and the bond...Ch. 1.15 - Which of the bond in a carbon-oxygen double bond...Ch. 1.15 - Would you expect a CC bond formed by sp2sp2...Ch. 1.15 - Caffeine is a natural insecticide found in the...Ch. 1.15 - a. What is the hybridization of each of the carbon...Ch. 1.15 - Predict the approximate bond angles for a. the CNC...Ch. 1.16 - What of the following molecules would you expect...Ch. 1.16 - Account for the difference in the shape and color...Ch. 1.16 - If the dipole moment of CH3F is 1.847 D and the...Ch. 1 - Draw a Lewis structure for each of the following:...Ch. 1 - Prob. 50PCh. 1 - What is the hybridization of all the atoms (other...Ch. 1 - Draw the condensed structure of a compound that...Ch. 1 - Predict the approximate bond angles: a. the CNH...Ch. 1 - Prob. 54PCh. 1 - Draw a Lewis structure for each of the following:...Ch. 1 - What is the hybridization of each of the carbon...Ch. 1 - Rank the bonds from most polar. a. CO, CF, CN b....Ch. 1 - Draw a Lewis structure for each of the following:...Ch. 1 - Prob. 59PCh. 1 - What is the hybridization of the indicated atom in...Ch. 1 - Predict the approximate bond angles for the...Ch. 1 - Prob. 62PCh. 1 - Draw the missing lone-pair electrons and assigns...Ch. 1 - a. Which of the indicated bonds in each molecule...Ch. 1 - For each of the following molecules, indicate the...Ch. 1 - Draw a Lewis structure for each of the following:...Ch. 1 - Prob. 67PCh. 1 - Rank the following compounds from highest dipole...Ch. 1 - In which orbitals are the lone pairs in nicotine?Ch. 1 - Prob. 70PCh. 1 - Prob. 71PCh. 1 - a. Which of the species have bond angles of 109.5?...Ch. 1 - Prob. 73PCh. 1 - Which compound has a larger dipole moment: CH3Cl...Ch. 1 - Prob. 75PCh. 1 - Explain why CH3Cl has a greater dipole moment than...Ch. 1 - a. Draw a Lewis structure for each of the...Ch. 1 - There are three isomers with molecular formula...
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- 3. Titanium(III) chloride can be used to catalyze the polymerization of ethylene. It is prepared by hydrogen reduction of Titanium(IV) chloride. Reaction of hydrogen gas with titanium(IV) chloride gas produces solid titanium(III) chloride and hydrogen chloride gas. (a) Write a BALANCED chemical reaction for the preparation of titanium(III) chloride (b) A 250 L reaction vessel at 325°C is filled with hydrogen gas to a pressure of 1.3 atm. Titanium(IV) chloride is then added to bring the total pressure to 3.00 atm. How many grams of titanium(III) chloride will be produced after completion of the reaction? (c) What will be the pressure of the resulting hydrogen chloride gas that is also produced?arrow_forward1. Sodium azide (NaN3) is the primary chemical substance used in automobile air bags. Upon impact, the decomposition of sodium azide is initiated to produce sodium metal and nitrogen gas which then inflates the bag. How many liters of nitrogen gas are produced at 1.15 atm and 30.0°C when 145.0 grams of sodium azide decomposes? 2. Calcium carbonate (such as that in limestone) reacts with aqueous hydrochloric acid to produce carbon dioxide, aqueous calcium chloride and water. How many liters of carbon dioxide are produced at 20°C and 745 torr when 3.583 grams of calcium carbonate is dissolved in solution containing 1.550 grams of hydrochloric acid?arrow_forwardShow all work (where appropriate) for full credit. 1. Describe (steps, equipment and quantities) how to accurately prepare 250.0 mL of a 0.0075 M solution of NaCl (aq) from a 500 mL, 0.0500 M stock solution. 2. Describe (steps, equipment and quantities) how to accurately prepare 250.0 mL of a 0.0075 M solution of NaCl (aq) from 100 g of solid NaCl.arrow_forward
- 5. An unlabeled gas cylinder was recently found in the laboratory. A sample of the gas was removed and analyzed. A 500.0 mL sample of the gas at 15°C and a pressure of 736 mmHg was found to weigh 2.688 g. Determine the molar mass of the gas. What element is the gas?arrow_forward4. Nitrogen gas is commonly sold in 49.0 L steal cylinders at a pressure of 150 atm. (a) How many moles of nitrogen are in the container if the temperature of the cylinder is 21°C. (b) How many moles of nitrogen will there be if the container above is heated to 100°C? (careful here) (c) What is the mass of nitrogen gas in the cylinder in part (a)? (d) What volume would the nitrogen occupy at 21°C, if the pressure was reduced to 1.02 atm? (e) What would be the pressure of the nitrogen gas in the cylinder when the temperature is raised to 39°C?arrow_forward6. A 0.4550 g sample of an unknown organic compound with the empirical formula CH2O was placed into a 150.0 ml vessel and was vaporized into a gas. At 175.0°C, the pressure of the vaporized compound was measured at 941.1 torr. (a) Determine the molar mass of the compound (b) Determine the molecular formula of the compound.arrow_forward
- Don't used Ai solutionarrow_forward3. A particular reaction calls for 2.40 g of chloride ion. The only source of chloride ion available is a 0.00300 M stock solution of strontium chloride. How much (in L) of this solution is needed for this reaction?arrow_forwardAbsorption Spectrum of NaphthaleneTitle: Understanding the Absorption Spectrum of NaphthaleneGraph: Show a graph with labeled peaks indicating the absorption spectrum of naphthalene in a suitable solventarrow_forward
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