Custom eBook for Organic Chemistry
2nd Edition
ISBN: 9798214171104
Author: Straumanis
Publisher: Cengage Custom
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Chapter 4, Problem 29CTQ
Interpretation Introduction
Interpretation: Whether below reactions are endothermic or exothermic should be determined.
Concept introduction:
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Jorge is trying to classify the reaction represented by
the graph below and calculate the change in energy, AH
for it.
250
200-
..
PE
150
(KJ)
....
100
...
50
Reaction pathway
He claims that the AH will be -100kJ and the reaction is
exothermic. Is his claim correct? If not, find the errors
and fix them to give the correct answer. Make sure to
show ALL work and give explanations.
The H0 and S0 for the reaction N2O4 N2 + 2O2?
40 kJ
Reactants
Na
Activation Energy
CI
30 kJ
Products
Na
CI
H
10 kJ
Reaction Progress
Na
H CI
Potential Energy [kJ]
Chapter 4 Solutions
Custom eBook for Organic Chemistry
Ch. 4 - Prob. 1CTQCh. 4 - Figure 4.1 is a cartoon depiction of liquid water...Ch. 4 - Prob. 3CTQCh. 4 - Prob. 4CTQCh. 4 - In HF , neither H nor F holds a full formal charge...Ch. 4 - Prob. 6CTQCh. 4 - Prob. 7CTQCh. 4 - Prob. 8CTQCh. 4 - Within any one section of Table 4.2, boiling...Ch. 4 - Prob. 10CTQ
Ch. 4 - Prob. 11CTQCh. 4 - Prob. 12CTQCh. 4 - Prob. 13CTQCh. 4 - Prob. 14CTQCh. 4 - Prob. 15CTQCh. 4 - Prob. 16CTQCh. 4 - Prob. 17CTQCh. 4 - Prob. 18CTQCh. 4 - Prob. 19CTQCh. 4 - Prob. 20CTQCh. 4 - Prob. 21CTQCh. 4 - Prob. 22CTQCh. 4 - (E) Label each of the following as strong acid,...Ch. 4 - Prob. 24CTQCh. 4 - Draw the structure of the conjugate base of water....Ch. 4 - Does Cl have a conjugate acid? If so, what is it?...Ch. 4 - Draw the conjugate base of CH4 (methane).Ch. 4 - For the previous four questions, label each...Ch. 4 - Prob. 29CTQCh. 4 - According to the conventions above, what is the...Ch. 4 - Draw an arrow on Figure 4.13 representing Hrxn4 ....Ch. 4 - Prob. 32CTQCh. 4 - Add a + or above each curved arrow in Figure 4.11...Ch. 4 - Prob. 34CTQCh. 4 - Prob. 35CTQCh. 4 - Prob. 36CTQCh. 4 - Prob. 37CTQCh. 4 - Prob. 38CTQCh. 4 - Prob. 39CTQCh. 4 - Prob. 40CTQCh. 4 - Prob. 41CTQCh. 4 - Prob. 42CTQCh. 4 - Prob. 43CTQCh. 4 - Prob. 44CTQCh. 4 - Prob. 45CTQCh. 4 - Prob. 46CTQCh. 4 - For NH3 (ammonia) and H2O (water)... a. Use curved...Ch. 4 - Prob. 48CTQCh. 4 - Prob. 49CTQCh. 4 - Prob. 50CTQCh. 4 - Prob. 51CTQCh. 4 - Prob. 52CTQCh. 4 - Prob. 53CTQCh. 4 - Prob. 1ECh. 4 - Prob. 2ECh. 4 - Prob. 3ECh. 4 - Prob. 4ECh. 4 - Prob. 5ECh. 4 - Prob. 6ECh. 4 - Prob. 7ECh. 4 - Prob. 8ECh. 4 - Propanal (bp 48°C) and propanol (bp 97°C), both...Ch. 4 - Rank the following molecules from lowest to...Ch. 4 - Prob. 12ECh. 4 - For each molecule below, draw the conjugate acid...Ch. 4 - For each structure you drew in the answer to the...Ch. 4 - Mark each of the following statements True or...Ch. 4 - Organic chemistry is a bit like cooking. Later in...Ch. 4 - Prob. 17ECh. 4 - Prob. 18ECh. 4 - Are endothermic reactions favorable or...Ch. 4 - Prob. 20ECh. 4 - Is bond formation endothermic or exothermic? Write...Ch. 4 - Summarize the relationship between pKa and acid...Ch. 4 - Summarize the relationship between pKa and base...Ch. 4 - Prob. 25ECh. 4 - Consider the following bases: a. For each base...Ch. 4 - Prob. 27ECh. 4 - The following are equivalent ways of asking about...Ch. 4 - Prob. 29E
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- Question 5 of 8 O Macmillan Learning > Calculate AH° for the reaction using the given bond dissociation energies. CH₂(g) + 2O₂(g) → CO₂(g) + 2 H₂O(g) Bond AH° (kJ/mol) O-O H-O C-H C=O O=O C-O ΔΗ° = 142 459 411 799 498 358 kJ/mol This reaction is exothermic. endothermic.arrow_forwardD. H20 (s) –> H20 (I) AHo = 6.01kJ/mol| 1. This reaction depicts the 2. Is this reaction endothermic or exothermic? 3. Is this reaction reversible or irreversible? (process) of (product).arrow_forward(c) The energy of the reactants is shown on the following energy diagram. On the right side of the energy diagram, draw a horizontal line segment to indicate the energy of the products. Draw a vertical double-headed arrow (1) on the graph that corresponds to the value of AH for the reaction. CH4 + F2 Reaction Progress Energyarrow_forward
- Would the amount of heat absorbed by the dissolution in Example 5.6 appear greater, lesser, or remain the same if the experimenter used a calorimeter that was a poorer insulator than a coffee cup calorimeter? Explain your answer.arrow_forward7-16 A quart of milk quickly spoils if left at room temperature but keeps for several days in a refrigerator. Explain.arrow_forward1. Fill in the boxes below with the correct reagent, reactant or product (5 (а) OH (b) 1. (CH),СHMgBr 2. H,0 ÓH (c) 1. L¡AIH, 2. НО (d) CH;OH H,SO4 (e) 1. 2 (CH3),CHMgBr, 2. H,0 ÓH (f) 1. LIAIH, 2. H,0 HO,arrow_forward
- Can you please help with reaction 2 and 3 under calculations?arrow_forwardof CH,COOH Heat CO,Et ( 12 NaOE! CO,Et 2 Br но 1.Br PBr OH, OEt 1. NaOEt 2. NaOEt LDA CN CH,CH,a CH NaOH C, excessarrow_forwardTry Again Your answer is incorrect. • Row 1: Your answer is incorrect. • Row 2: Your answer is incorrect. • Row 4: Your answer is incorrect. Consider a hypothetical chemical reaction: A+B C+D (In this equation A, B, C and D stand for some unknown chemical formulas.) Here is an energy diagram for the reaction: energy (kJ/mol) 400 300- 200 100. 0 A + B reaction coordinate Use the energy diagram to answer these questions. What is the heat of reaction? C + D Is the reaction exothermic or endothermic? Can you determine the activation energy? Can you determine the activation energy of the reverse reaction? C+DA+B 250 kJ/mol Exothermic Endothermic Neither Yes, it's 150 kJ/mol No. Yes, it's 100 kJ/mol No.arrow_forward
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