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Organic Chemistry: A Guided Inquiry
2nd Edition
ISBN: 9780618974122
Author: Andrei Straumanis
Publisher: Cengage Learning
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Textbook Question
Chapter 4, Problem 21E
Is bond formation endothermic or exothermic? Write a
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Students have asked these similar questions
Use the bond energies to determine whether the following reaction is exothermic or endothermic and what is the amount of energy released or absorbed?
H-O – O-H + H-O – O-H ---> O=O + H – O –H + H –O – H, hydrogen peroxide reacts to form oxygen gas and water.
Bonds to Break: Bonds to Form:
Please answer both questions as they are calculated together but just a heads up they are different questions. Thank you for helping me
1) Fill In the Blanks
a. The total amount of potential energy and kinetic energy in a substance is called ____________
b. To use bond energies to estimate the enthalpy of a reaction, one must first draw the __________of the reactants and the products.
(I'm assuming its Mechanical energy for a and structural formula for b)
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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- Methylcyanoacrylate is the active ingredient in super glues. Its Lewis structure is In this molecule, which is the (a) weakest carbon-containing bond? (b) strongest carbon-containing bond? (c) most polar bond?arrow_forwardAspirin is made from salicylic acid, which has this Lewis structure: (a) Which is the longest carbon-carbon bond? (b) Which is the strongest carbon-oxygen bond? (c) Draw resonance structures for this molecule.arrow_forwardWrite all resonance structures of chlorobenzene, C6H5Cl, a molecule with the same cyclic structure as benzene. In all structures, keep the CCl bond as a single bond. Which resonance structures are the most important?arrow_forward
- In the Lewis structure for chloromethane, the chlorine atom is sharing _____ electron pair and “owns” _____ of those electrons. Also, the chlorine atom possesses two electrons from each of _____ unshared pairs. The total number of electrons that belong to chlorine is 7 . Chlorine is a Group ____ element. The formal charge on chlorine in chloromethane is ____.arrow_forwardBond Enthalpy When atoms of the hypothetical element X are placed together, they rapidly undergo reaction to form the X2 molecule: X(g)+X(g)X2(g) a Would you predict that this reaction is exothermic or endothermic? Explain. b Is the bond enthalpy of X2 a positive or a negative quantity? Why? c Suppose H for the reaction is 500 kJ/mol. Estimate the bond enthalpy of the X2 molecule. d Another hypothetical molecular compound, Y2(g), has a bond enthalpy of 750 kJ/mol, and the molecular compound XY(g) has a bond enthalpy of 1500 kJ/mol. Using bond enthalpy information, calculate H for the following reaction. X2(g)+Y2(g)2XY(g) e Given the following information, as well as the information previously presented, predict whether or not the hypothetical ionic compound AX is likely to form. In this compound, A forms the A+ cation, and X forms the X anion. Be sure to justify your answer. Reaction: A(g)+12X2(g)AX(s)The first ionization energy of A(g) is 400 kJ/mol. The electron affinity of X(g) is 525 kJ/mol. The lattice energy of AX(s) is 100 kJ/mol. f If you predicted that no ionic compound would form from the reaction in Part e, what minimum amount of AX(s) lattice energy might lead to compound formation?arrow_forwardWhen a reaction is exothermic, is the sum of bond energies of products or of reactants greater?arrow_forward
- Define bond energy using the H--Cl bond as an example.When this bond breaks, is energy absorbed or released? Is the accompanying ΔH value positive or negative? How do the mag-nitude and sign of this ΔH value relate to the value that accom-panies H--Cl bond formation?arrow_forwardIf the following reaction is given: C2H5F + Cl2 || AHran If the bond energy for C-H is 414 kJ/ mole, the bond energy for C-C is 347 kJ/mole, the bond energy for C-Cl is 377 kJ/ mole, the bond energy for Cl-Cl is 243 kJ/ mole, the bond energy for C-F is 450 kJ/ mole and the done energy for H-Cl is 431 kJ/ mole, determine the bond energy for the H-F bond in kJ/mole. C2H4Cl2 + HF 151kJ mole Give your answer as a positive value as all energies for bond values should be written in terms of a positive value (the energy needed to break the bond = endothermic)arrow_forwardRank the following compounds in order from lowest (weakest) lattice energy to greatest (strongest) lattice energy. 1 being the weakest and 4 being the strongest CaO Sro BaO MgO > >arrow_forward
- The enthalpy of reaction calculated using the bond energy approach is often different than that calculated using the enthalpy of formation approach. True/false?arrow_forwardHydrochloric acid and sodium hydroxide react to produce water and sodium chloride in an endothermic reaction. Which statement must be true of the reaction? a- The bond energy used to break the bonds in hydrochloric acid and sodium hydroxide is less than the energy released to form the bonds in water and sodium chloride. B-More bond energy is absorbed on the reactants side than is released on the products side. c-The energy of each bond in water and sodium chloride is greater than the energy of each bond in hydrochloric acid and sodium hydroxide d-The total bond energy of water and sodium chloride is greater than the total bond energy of hydrochloric acid and sodium hydroxide.arrow_forwardFor the following chemical reaction determine the heat of reaction (Bond enthalpy). Is this reaction exothermic or endothermic? H2C == CH2 + HCl ⟶⟶ CH3CH2Cl Bond Energy: C–H : 100 kcal/mol ; C=C: 145kcal/mol ; C-C: 83 kcal/mol ; H-Cl: 102 kcal/mol ; C-Cl : 81 kcal/mol bonds in reactant : 4 C-H , C=C, H-Cl bonds in Products: C-C, 5 C-H, C-Clarrow_forward
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