Chemistry: The Molecular Science
5th Edition
ISBN: 9781285199047
Author: John W. Moore, Conrad L. Stanitski
Publisher: Cengage Learning
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Textbook Question
Chapter 6, Problem 34QRT
Estimate ΔrH° for forming 2 mol ammonia from molecular nitrogen and molecular hydrogen. Is this reaction exothermic or endothermic?
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Chemistry: The Molecular Science
Ch. 6.2 - Write Lewis structures for (a) NF3, (b) N2H4, and...Ch. 6.3 - Prob. 6.1ECh. 6.3 - Prob. 6.2PSPCh. 6.4 - Prob. 6.2CECh. 6.4 - Write Lewis structures for (a) nitrosyl ion, NO+;...Ch. 6.5 - Prob. 6.4CECh. 6.5 - Prob. 6.5CECh. 6.5 - Prob. 6.4PSPCh. 6.6 - Prob. 6.5PSPCh. 6.6 - Use Equation 6.1 and values from Table 6.2 to...
Ch. 6.6 - Prob. 6.6CECh. 6.7 - Prob. 6.7PSPCh. 6.7 - Prob. 6.7CECh. 6.8 - Prob. 6.8PSPCh. 6.9 - Prob. 6.9PSPCh. 6.9 - Prob. 6.9CECh. 6.10 - Prob. 6.10PSPCh. 6.11 - Prob. 6.10ECh. 6.11 - Prob. 6.11ECh. 6.11 - Prob. 1CECh. 6.11 - Prob. 2CECh. 6.12 - Repeat Problem-Solving Example 6.11, but use N2...Ch. 6.12 - Use MO theory to predict the bond order and the...Ch. 6 - Prob. 1QRTCh. 6 - Prob. 2QRTCh. 6 - Prob. 3QRTCh. 6 - Prob. 4QRTCh. 6 - Prob. 5QRTCh. 6 - Prob. 6QRTCh. 6 - Which of these molecules have an odd number of...Ch. 6 - Prob. 8QRTCh. 6 - Prob. 9QRTCh. 6 - Prob. 10QRTCh. 6 - Prob. 11QRTCh. 6 - Prob. 12QRTCh. 6 - Explain in your own words why the energy of two H...Ch. 6 - Prob. 14QRTCh. 6 - Prob. 15QRTCh. 6 - Prob. 16QRTCh. 6 - Prob. 17QRTCh. 6 - Prob. 18QRTCh. 6 - Prob. 19QRTCh. 6 -
Write Lewis structures for
tetracyanoethene,...Ch. 6 - Prob. 21QRTCh. 6 - Prob. 22QRTCh. 6 - Prob. 23QRTCh. 6 - Prob. 24QRTCh. 6 - Prob. 25QRTCh. 6 - Prob. 26QRTCh. 6 - Prob. 27QRTCh. 6 - Prob. 28QRTCh. 6 - Prob. 29QRTCh. 6 - For each pair of bonds, predict which is the...Ch. 6 - Prob. 31QRTCh. 6 - Prob. 32QRTCh. 6 - Which bond requires more energy to break: the...Ch. 6 -
Estimate ΔrH° for forming 2 mol ammonia from...Ch. 6 - Prob. 35QRTCh. 6 - Light of appropriate wavelength can break chemical...Ch. 6 - Prob. 37QRTCh. 6 - Prob. 38QRTCh. 6 - Prob. 39QRTCh. 6 - Acrolein is the starting material for certain...Ch. 6 - Prob. 41QRTCh. 6 - Prob. 42QRTCh. 6 - Write the correct Lewis structure and assign a...Ch. 6 - Prob. 44QRTCh. 6 - Prob. 45QRTCh. 6 - Two Lewis structures can be written for nitrosyl...Ch. 6 - Prob. 47QRTCh. 6 - Prob. 48QRTCh. 6 - Prob. 49QRTCh. 6 - Prob. 50QRTCh. 6 - Several Lewis structures can be written for...Ch. 6 - Prob. 52QRTCh. 6 - Prob. 53QRTCh. 6 - Prob. 54QRTCh. 6 - Prob. 55QRTCh. 6 - Draw resonance structures for each of these ions:...Ch. 6 - Three known isomers exist of N2CO, with the atoms...Ch. 6 - Write the Lewis structure for (a) BrF5 (b) IF5 (c)...Ch. 6 - Write the Lewis structure for
BrF3
XeF4
Ch. 6 - Prob. 60QRTCh. 6 - Prob. 61QRTCh. 6 - Prob. 62QRTCh. 6 - All carbon-to-carbon bond lengths are identical in...Ch. 6 - Prob. 64QRTCh. 6 - Prob. 65QRTCh. 6 - Prob. 66QRTCh. 6 - Prob. 67QRTCh. 6 - Prob. 68QRTCh. 6 - Prob. 69QRTCh. 6 - Prob. 70QRTCh. 6 - Using just a periodic table (not a table of...Ch. 6 - The CBr bond length in CBr4 is 191 pm; the BrBr...Ch. 6 - Prob. 73QRTCh. 6 -
Acrylonitrile is the building block of the...Ch. 6 - Prob. 75QRTCh. 6 - Write Lewis structures for (a) SCl2 (b) Cl3+ (c)...Ch. 6 - Prob. 77QRTCh. 6 - Prob. 78QRTCh. 6 - A student drew this incorrect Lewis structure for...Ch. 6 - This Lewis structure for SF5+ is drawn...Ch. 6 - Tribromide, Br3, and triiodide, I3, ions are often...Ch. 6 - Explain why nonmetal atoms in Period 3 and beyond...Ch. 6 - Prob. 83QRTCh. 6 - Prob. 84QRTCh. 6 - Prob. 85QRTCh. 6 - Prob. 86QRTCh. 6 - Which of these molecules is least likely to exist:...Ch. 6 - Write the Lewis structure for nitrosyl fluoride,...Ch. 6 - Prob. 91QRTCh. 6 - Methylcyanoacrylate is the active ingredient in...Ch. 6 - Aspirin is made from salicylic acid, which has...Ch. 6 - Prob. 94QRTCh. 6 - Prob. 95QRTCh. 6 - Prob. 96QRTCh. 6 - Prob. 97QRTCh. 6 - Prob. 98QRTCh. 6 - Nitrosyl azide, N4O, is a pale yellow solid first...Ch. 6 - Write the Lewis structures for (a) (Cl2PN)3 (b)...Ch. 6 - Nitrous oxide, N2O, is a linear molecule that has...Ch. 6 - The azide ion, N3, has three resonance hybrid...Ch. 6 - Hydrazoic acid, HN3, has three resonance hybrid...Ch. 6 - Prob. 104QRTCh. 6 - Experimental evidence indicates the existence of...Ch. 6 - Prob. 106QRTCh. 6 - Prob. 107QRTCh. 6 - Pipeline, the active ingredient in black pepper,...Ch. 6 - Sulfur and oxygen form a series of 2 anions...Ch. 6 - Prob. 110QRTCh. 6 - Prob. 111QRTCh. 6 - Prob. 112QRTCh. 6 - Prob. 113QRTCh. 6 - Prob. 114QRTCh. 6 - Prob. 115QRTCh. 6 - Prob. 116QRTCh. 6 - Prob. 117QRTCh. 6 - Prob. 118QRTCh. 6 - Prob. 6.ACPCh. 6 - Prob. 6.BCPCh. 6 - Prob. 6.CCP
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- Actually, the carbon in CO2(g) is thermodynamically unstable with respect to the carbon in calcium carbonate(limestone). Verify this by determining the standardGibbs free energy change for the reaction of lime,CaO(s), with CO2(g) to make CaCO3(s).arrow_forwardGiven: P4(s)+5O2(g)P4O10(s)G298=2697.0kJ/mol 2H2(g)+O2(g)2H2O(g)G298=457.18kJ/mol 6H2O(g)+P4O10(s)4H3PO4(l)G298=428.66kJ/mol (a) Determine the standard free energy of formation, Gf, for phosphoric acid. (b) How does your calculated result compare to the value in Appendix G? Explain.arrow_forwardUse the standard free energy of formation data in Appendix G to determine the free energy change for each of the following reactions, which are run under standard state conditions and 25 C. Identify each as either spontaneous or nonspontaneous at these conditions. (a) MnO2(s)Mn(s)+O2(g) (b) H2(g)+Br2(l)2HBr(g) (c) Cu(s)+S(g)CuS(s) (d) 2LiOH(s)+CO2(g)Li2CO3(s)+H2O(g) (e) CH4(g)+O2(g)C(s,graphite)+2H2O(g) (f) CS2(g)+3Cl2(g)CCl4(g)+S2Cl2(g)arrow_forward
- Data are given in Appendix 1 for white phosphorus, P4(s). P4(g) has the following thermodynamic values: Hf=58.9kJ/mol , S=280.0J/kmol . What is the temperature at which white phosphorus sublimes at 1 atm pressure?arrow_forwardWhat information can be determined from G for a reaction? Does one get the same information from G, the standard free energy change? G allows determination of the equilibrium constant K for a reaction. How? How can one estimate the value of K at temperatures other than 25C for a reaction? How can one estimate the temperature where K = 1 for a reaction? Do all reactions have a specific temperature where K = 1?arrow_forwardConsider the reaction Fe2O3(s)+3H2(g)2Fe(s)+3H2O(g) a. Use Gf values in Appendix 4 to calculate G for this reaction. b. Is this reaction spontaneous under standard conditions at 298 K? c. The value of H for this reaction is 100. kJ. At what temperatures is this reaction spontaneous at standard conditions? Assume that H and S do not depend on temperature.arrow_forward
- Using values of fH and S, calculate the standard molar free energy of formation, fG, for each of the following: (a) Ca(OH)2(s) (b) Cl(g) (c) Na2CO3(s) Compare your calculated values of fG with those listed in Appendix L. Which of these formation reactions are predicted to be product-favored at equilibrium at 25 C?arrow_forwardIs the formation of ozone (O3(g)) from oxygen (O2(g)) spontaneous at room temperature under standard state conditions?arrow_forwardUsing data from Appendix 4, calculate G for the reaction 2H2S(g)+SO2(g)3Srhombic(s)+2H2O(g) for the following conditions at 25C: PH2S=1.0104atmPSO2=1.0102atmPH2O=3.0102atmarrow_forward
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