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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Textbook Question
Chapter 8, Problem 39P
8-51 What is the end point of a titration?
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Q1: Answer the questions for the reaction below:
..!! Br
OH
a) Predict the product(s) of the reaction.
b) Is the substrate optically active? Are the product(s) optically active as a mix?
c) Draw the curved arrow mechanism for the reaction.
d) What happens to the SN1 reaction rate in each of these instances:
1. Change the substrate to
Br
"CI
2. Change the substrate to
3. Change the solvent from 100% CH3CH2OH to 10% CH3CH2OH + 90% DMF
4. Increase the substrate concentration by 3-fold.
Experiment 27 hates & Mechanisms of Reations
Method I visual Clock Reaction
A. Concentration effects on reaction Rates
Iodine
Run [I] mol/L [S₂082] | Time
mo/L
(SCC)
0.04 54.7
Log
1/ Time Temp Log [ ] 13,20] (time)
/ [I] 199
20.06
23.0
30.04 0.04
0.04 80.0
22.8
45
40.02
0.04 79.0
21.6
50.08
0.03 51.0
22.4
60-080-02 95.0
23.4
7 0.08
0-01 1970
23.4
8 0.08 0.04 16.1
22.6
(15 pts) Consider the molecule B2H6. Generate a molecular orbital diagram but this
time using a different approach that draws on your knowledge and ability to put
concepts together. First use VSEPR or some other method to make sure you know
the ground state structure of the molecule. Next, generate an MO diagram for BH2.
Sketch the highest occupied and lowest unoccupied MOs of the BH2 fragment.
These are called frontier orbitals. Now use these frontier orbitals as your basis set
for producing LGO's for B2H6. Since the BH2 frontier orbitals become the LGOS,
you will have to think about what is in the middle of the molecule and treat its basis
as well. Do you arrive at the same qualitative MO diagram as is discussed in the
book? Sketch the new highest occupied and lowest unoccupied MOs for the
molecule (B2H6).
Chapter 8 Solutions
Introduction To General, Organic, And Biochemistry
Ch. 8.3 - Problem 8-1 Draw the acid and base reactions for...Ch. 8.4 - Prob. 8.2QCCh. 8.5 - Prob. 8.3QCCh. 8.5 - Problem 8-4 Which is the stronger acid? (a)...Ch. 8.6 - Problem 8-5 Write the balanced net ionic equation...Ch. 8.7 - Problem 8-6 The [OH-] of an aqueous solution is M....Ch. 8.8 - Problem 8-7 (a) The [H3O+] of an acidic solution...Ch. 8.8 - Problem 8-8 The [OH-] of a solution is M. What are...Ch. 8.9 - Problem 8-9 Calculate the concentration of an...Ch. 8.10 - Problem 8-10 What is the pH of a buffer solution...
Ch. 8.11 - Problem 8-11 What is the pH of a boric acid buffer...Ch. 8.12 - Prob. 8.12QCCh. 8 - 8-13 Define (a) an Arrhenius acid and (b) an...Ch. 8 - 8-14 Write an equation for the reaction that takes...Ch. 8 - 8-15 Write an equation for the reaction that takes...Ch. 8 - 8-16 For each of the following, tell whether the...Ch. 8 - 8-17 For each of the following, tell whether the...Ch. 8 - 8-18 Which of these acids are monoprotic, which...Ch. 8 - 8-19 Define (a) a Brønsted—Lowry acid and (b) a...Ch. 8 - 8-20 Write the formula for the conjugate base of...Ch. 8 - 8-21 Write the formula for the conjugate base of...Ch. 8 - Prob. 10PCh. 8 - Prob. 11PCh. 8 - Prob. 12PCh. 8 - 8-25 Draw the acid and base reactions for the...Ch. 8 - Prob. 14PCh. 8 - Prob. 15PCh. 8 - 8-28 Will carbon dioxide be evolved as a gas when...Ch. 8 - Prob. 17PCh. 8 - Prob. 18PCh. 8 - Prob. 19PCh. 8 - Prob. 20PCh. 8 - 8-33 Write an equation for the reaction of HCI...Ch. 8 - 8-34 When a solution of sodium hydroxide is added...Ch. 8 - 8-35 Given the following values of [H3O+),...Ch. 8 - 8-36 Given the following values of [OH-],...Ch. 8 - 8-37 What is the pH of each solution given the...Ch. 8 - 8-38 What is the pH and pOH of each solution given...Ch. 8 - 8-39 What is the pH of each solution given the...Ch. 8 - Prob. 28PCh. 8 - 8-41 What is the [OH-] and pOH of each solution?...Ch. 8 - Prob. 30PCh. 8 - 8-43 What is the molarity of a solution made by...Ch. 8 - 8-44 What is the molarity of a solution made by...Ch. 8 - 8-45 Describe how you would prepare each of the...Ch. 8 - 8-46 If 25.0 mL of an aqueous solution of H2SO4...Ch. 8 - 8-47 A sample of 27.0 mL of 0.310 M NaOH is...Ch. 8 - 8-48 A 0.300 M solution of H2SO4 was used to...Ch. 8 - 8-49 A solution of NaOH base was titrated with...Ch. 8 - 8-50 The usual concentration of HCO3- ions in...Ch. 8 - 8-51 What is the end point of a titration?Ch. 8 - Prob. 40PCh. 8 - 8-53 Write equations to show what happens when, to...Ch. 8 - 8-54 Write equations to show what happens when, to...Ch. 8 - 8-55 We commonly refer to a buffer as consisting...Ch. 8 - Prob. 44PCh. 8 - Prob. 45PCh. 8 - 8-58 What is the connection between buffer action...Ch. 8 - Prob. 47PCh. 8 - 8-60 How is the buffer capacity affected by the...Ch. 8 - 8-61 Can 100 of 0.1 M phosphate buffer at pH 7.2...Ch. 8 - 8-62 What is the pH of a buffer solution made by...Ch. 8 - 8-63 The pH of a solution made by dissolving 1.0...Ch. 8 - Prob. 52PCh. 8 - Prob. 53PCh. 8 - Prob. 54PCh. 8 - Prob. 55PCh. 8 - 8-66 Calculate the pH of an aqueous solution...Ch. 8 - Prob. 57PCh. 8 - 8-68 If you have 100 mL of a 0.1 M buffer made of...Ch. 8 - Prob. 59PCh. 8 - Prob. 60PCh. 8 - 8-71 Explain why you do not need to know the...Ch. 8 - Prob. 62PCh. 8 - Prob. 63PCh. 8 - Prob. 64PCh. 8 - Prob. 65PCh. 8 - 8-76 (Chemical Connections 8B) Name the most...Ch. 8 - Prob. 67PCh. 8 - Prob. 68PCh. 8 - 8-79 (Chemical Connections 8D) Another form of the...Ch. 8 - Prob. 70PCh. 8 - Prob. 71PCh. 8 - 8-82 Assume that you have a dilute solution of HCI...Ch. 8 - Prob. 73PCh. 8 - Prob. 74PCh. 8 - Prob. 75PCh. 8 - 8-86 Following are three organic acids and the...Ch. 8 - 8-87 The pKavalue of barbituric acid is 5.0. If...Ch. 8 - Prob. 78PCh. 8 - Prob. 79PCh. 8 - Prob. 80PCh. 8 - Prob. 81PCh. 8 - Prob. 82PCh. 8 - 8-93 Do a 1.0 M CH3COOH solution and a 1.0 M HCI...Ch. 8 - 8-94 Suppose you wish to make a buffer whose pH is...Ch. 8 - Prob. 85PCh. 8 - 8-96 Suppose you want to make a CH3COOH/CH3COO-...Ch. 8 - Prob. 87PCh. 8 - 8-98 When a solution prepared by dissolving 4.00 g...Ch. 8 - Prob. 89PCh. 8 - Prob. 90PCh. 8 - 8-101 Suppose you have an aqueous solution...Ch. 8 - Prob. 92PCh. 8 - 8-103 Suppose you have a phosphate buffer...Ch. 8 - Prob. 94PCh. 8 - Prob. 95PCh. 8 - Prob. 96PCh. 8 - 8-107 Following are pH ranges for several human...Ch. 8 - Prob. 98PCh. 8 - Prob. 99PCh. 8 - 8-108 What is the ratio of HPO42-/H2PO4- in a...Ch. 8 - Prob. 101PCh. 8 - 8-110 A concentrated hydrochloric acid solution...Ch. 8 - 8-111 The volume of an adult's stomach ranges from...Ch. 8 - 8-112 Consider an initial 0.040 M hypobromous acid...Ch. 8 - Prob. 105PCh. 8 - Prob. 106PCh. 8 - 8-115 When a solution prepared by dissolving 0.125...Ch. 8 - 8-116 A railroad tank car derails and spills 26...Ch. 8 - Prob. 109PCh. 8 - Prob. 110PCh. 8 - Prob. 111P
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