Organic Chemistry: A Guided Inquiry
2nd Edition
ISBN: 9780618974122
Author: Andrei Straumanis
Publisher: Cengage Learning
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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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2. Energy diagrams for two reactions are shown below.
Reaction A
Reaction B
70
40 -
60 -
20
50
40 -
30
-20-
20
40
10
60
Reaction Coordinate
Reaction Coordinate
Which reaction happens faster? Justify your choice with data from the graphs.
(jow/r) Kaaug
The H0 and S0 for the reaction N2O4 N2 + 2O2?
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.
Chapter 4 Solutions
Organic Chemistry: A Guided Inquiry
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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- Please fill the missing information for the following reactions (4 pts each) HO. NaBH4, CH;CH20H a OH OH H,CrO4 HI Br2 FeBr3 9.arrow_forwardQuestion 7 of 8 O Macmillan Learning Alkane halogenation is a two-step reaction, as shown in the image. Using the table of bond dissociation energies, calculate the enthalpy of each step and the enthalpy of the overall reaction. Bond Dissociation Energies (for A-B Bond broken AH (kJ/mol) Bond broken AH (kJ/mol) Bond broken AĦ (kJ/mol) H-H 436 400 366 292 193 Step 1 H3C- Step 2 H3C- CH3 CH3 CH3 CH3 Overall reaction H + + Br₂ CH3 I H3C- CH3 -H + Br₂ (CH₂)₂C-H (CH3)3C-Br H3C H3C A H3C- ■ CH3 CH3 + CH3 CH 3 + -Br CH3 F CH3 ■ B) + HBr + Br: -Br + HBr H-Br Br-Br ΔΗ = AH = AH = kJ/mol kJ/mol kJ/molarrow_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
- (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← → C Ma esc 2 < Nit Ho Ph Ph 1 app.101edu.co Week 4 Lab-3....docx :0 F1 ^ 2 Ho F2 Use the following table of bond energies to calculate the molar enthalpy of combustion (in kJ/mol) of acetylene (C₂H₂) gas in oxygen, based on the following chemical equation: C₂H₂(g) + 2.50₂(g) → 2CO₂(g) + H₂O(g) 3 HC NO X Single H Bond Gwh Gwh G tar Multiple Bonds 00 80 F3 432 **All values in kJ/mol** 411 346 386 305 167 459 358 W Hy wh (3.ll MA $ 4 000 000 F4 CN O C=C 602 C=O 799 835 C=O 1072 C=C C=N 615 O=O 494 C=N 887 N=N 942 Question 24 of 28 % 5 201 • 142 F5 MacBook Air 6 F6 7 CH AA F7 AP G wh * 8 DII F8 wh 9arrow_forwardWould 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_forward
- 400 cm3 of 0.2M h2so4 is mixed with 600 cm3 of 0.1M naoh solution. Is this reaction endothermic or exothermic? please answer fast i give upvotearrow_forwardPlease help !!arrow_forwardSelect the reactions that can be represented with the energy diagram in Figure 12. * Reaction A Reaction B Reaction Carrow_forward
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