ORGANIC CHEMISTRY-EBOOK>I<
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ISBN: 9781305084414
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Textbook Question
Chapter 6.SE, Problem 24EDRM
The addition of water to ethylene to yield ethanol has the following
(a) Is the reaction exothermic or endothermic?
(b) Is the reaction favorable (spontaneous) or unfavorable (nonspontaneous) at room temperature (298 k)?
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Carbon–carbon bond dissociation enthalpies have been measured for many alkanes. Identify the alkane in each of the following pairs that has the lower carbon–carbon bond-dissociation enthalpy, and explain the reason for your choice. (a) Ethane or propane (b) Propane or 2-methylpropane (c) 2-Methylpropane or 2,2-dimethylpropane (d) Cyclobutane or cyclopentane
Calculate the enthalpy of formation of propane from:a. Combustion data (ΔHc = –2217 kJ mol–1; ΔHf (CO2) = –393.4 kJ mol–1, ΔHf (H2O) =–285.2 kJ mol–1);b. Bond enthalpies (C–C 348 kJ mol–1; C–H 413 kJ mol–1; H–H 436 kJ mol–1; ΔHvap forcarbon = –717 kJ mol–1).
Considering each of the following values and neglecting entropy, tell whether the starting material or product is favored at equilibrium: (a) ΔH° = 80 kJ/mol; (b) ΔH° = −40 kJ/mol.
Chapter 6 Solutions
ORGANIC CHEMISTRY-EBOOK>I<
Ch. 6.1 - Prob. 1PCh. 6.3 - Prob. 2PCh. 6.3 - Using curved fishhook arrows, propose a mechanism...Ch. 6.4 - Prob. 4PCh. 6.4 - An electrostatic potential map of boron...Ch. 6.5 - What product would you expect from reaction of...Ch. 6.5 - Reaction of HBr with 2-methylpropene yields...Ch. 6.6 - Prob. 8PCh. 6.6 - Predict the products of the following polar...Ch. 6.7 - Which reaction is more energetically favored, one...
Ch. 6.7 - Prob. 11PCh. 6.9 - Which reaction is faster, one with ∆G‡ = +45...Ch. 6.10 - Prob. 13PCh. 6.SE - Prob. 14VCCh. 6.SE - Prob. 15VCCh. 6.SE - Prob. 16VCCh. 6.SE - Look at the following energy diagram: (a) Is...Ch. 6.SE - Look at the following energy diagram for an...Ch. 6.SE - What is the difference between a transition state...Ch. 6.SE - Prob. 20EDRMCh. 6.SE - Prob. 21EDRMCh. 6.SE - Draw an energy diagram for a two-step exergonic...Ch. 6.SE - Draw an energy diagram for a reaction with keq =...Ch. 6.SE - The addition of water to ethylene to yield ethanol...Ch. 6.SE - When isopropylidenecyclohexane is treated with...Ch. 6.SE - Prob. 26EDRMCh. 6.SE - Draw the electron-pushing mechanism for each...Ch. 6.SE - Draw the complete mechanism for each polar...Ch. 6.SE - Prob. 29EDRMCh. 6.SE - Identify the functional groups in the following...Ch. 6.SE - Identify the following reactions as additions,...Ch. 6.SE - Identify the likely electrophilic and nucleophilic...Ch. 6.SE - For each reaction below identify the electrophile...Ch. 6.SE - Prob. 34APCh. 6.SE - Follow the flow of electrons indicated by the...Ch. 6.SE - Prob. 36APCh. 6.SE - Prob. 37APCh. 6.SE - Despite the limitations of radical chlorination of...Ch. 6.SE - Prob. 39APCh. 6.SE - Answer question 6-39 taking all stereoisomers into...Ch. 6.SE - Prob. 41APCh. 6.SE - Prob. 42APCh. 6.SE - Prob. 43APCh. 6.SE - The reaction of hydroxide ion with chloromethane...Ch. 6.SE - Prob. 45APCh. 6.SE - Ammonia reacts with acetyl chloride (CH3COCl) to...Ch. 6.SE - The naturally occurring molecule α-terpineol is...Ch. 6.SE - Prob. 48APCh. 6.SE - Prob. 49APCh. 6.SE - Draw the structures of the two carbocation...
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- (a) The heat of combustion of ethyne, carbon, and hydrogen gas are -1300 kJ/mol, - 394 kJ/mol and -286 kJ/mol respectively. By manipulating the information given, calculate the enthalpy of formation of ethyne from the reaction between carbon and hydrogen gas.arrow_forward21.) Calculate the enthalpy of hydrogenation of benzene to cyclohexane from the following reactions A,H (kJ/mol) C6H6 (1) + 15/2 02 (g) → 6 CO2 (g) + 3 H20 (1) C6H12 (1) + 9 02 (g) → 6 CO2 (g) + 6 H20 (1) H2 (g) + ½ 02 (g) → H2O (1) -3268 -3920 -285.83 a.) -205 kJ/mol b.) -1507 kJ/mol c.) -938 kJ/mol d.) -366 kJ/molarrow_forwardEthylene (C₂H₄) is the starting material for the preparationof polyethylene. Although typically made during the processingof petroleum, ethylene occurs naturally as a fruit-ripening hor-mone and as a component of natural gas. (a) The heat of reactionfor the combustion of C₂H₄ is 1411 kJ/mol. Write a balancedthermochemical equation for the combustion of C₂H₄. (b) Howmany grams of C₂H₄ must burn to give 70.0 kJ of heat?arrow_forward
- (a) Calculate the standard enthalpy change for the combustion of 1 mol of benzene, C6H61l2, to CO21g2 and H2O1l2.(b) Compare the quantity of heat produced by combustion of 1.00 g propane with that produced by 1.00 g benzene.arrow_forward10. The addition of water to ethylene to yield ethanol has the following thermodynamic parameters:) (A) Is the reaction exothermic or endothermic? (b) Is the reaction favorable (spontaneous) or unfavorable (non-spontaneous) at room temperature (298K)?arrow_forwardIdentify the intermolecular forces (dipole–dipole, London dispersion, ydrogen bonding) that influence the properties of the following compounds: (a) Ethane, CH3CH3(b) Ethanol, CH3CH2OH(c) Chloroethane, CH3CH2Clarrow_forward
- Acetylene is a very weak acid; however, it will react with moist silver(I) oxide and form water and a compound composed of silver and carbon. Addition of a solution of HCl to a 0.2352-g sample of the compound of silver andcarbon produced acetylene and 0.2822 g of AgCl.(a) What is the empirical formula of the compound of silver and carbon?(b) The production of acetylene on addition of HCl to the compound of silver and carbon suggests that the carbon is present as the acetylide ion, C22− . Write the formula of the compound showing the acetylide ion.arrow_forwardTRUE OR FALSE (a) Both ethylene and acetylene are planar molecules. (b) An alkene in which each carbon of the double bond has two different groups bonded to it will show cis-trans isomerism. (c) Cis-trans isomers have the same molecular formula but a different connectivity of their atoms. (d) Cis-2-butene and trans -2-butene can be interconverted by rotation about the carbon–carbon double bond. (e) Cis-trans isomerism is possible only among appropriately substituted alkenes. (f) Both 2-hexene and 3-hexene can exist as pairs of cis-trans isomers. (g) Cyclohexene can exist as a pair of cis-trans isomers. (h) 1-Chloropropene can exist as a pair of cis-trans isomers.arrow_forwardTecharrow_forward
- Considering each of the following values and neglecting entropy, tell whether the starting material or product is favored at equilibrium: (a) ΔHo = 80 kJ/mol; (b) ΔHo = −40 kJ/mol.arrow_forwardBased on your observations, compare the stability of organic and inorganic compounds towards heat.arrow_forwardFollowing is a balanced equation for bromination of toluene.(a) Using the values for bond dissociation enthalpies given in Appendix 3,calculate ∆H0for this reaction.(b) Propose a pair of chain propagation steps and show that they add up to theobserved reaction.(c) Calculate ∆H0for each chain propagation step.(d) Which propagation step is rate-determininarrow_forward
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Chapter 4 Alkanes and Cycloalkanes Lesson 2; Author: Linda Hanson;https://www.youtube.com/watch?v=AL_CM_Btef4;License: Standard YouTube License, CC-BY
Chapter 4 Alkanes and Cycloalkanes Lesson 1; Author: Linda Hanson;https://www.youtube.com/watch?v=PPIa6EHJMJw;License: Standard Youtube License