Student Solutions Manual for Ebbing/Gammon's General Chemistry, 11th
11th Edition
ISBN: 9781305673472
Author: Darrell Ebbing, Steven D. Gammon
Publisher: Cengage Learning
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Textbook Question
Chapter 18, Problem 18.86QP
Consider the reaction
Calculate ΔH°, ΔS°, and ΔG° at 25°C for this reaction. Assume ΔH° and ΔS° are constant with respect to a change of temperature. Now calculate ΔG° at 650°C. Compare the two values of ΔG°. Briefly discuss the spontaneity of the reaction at 25°C and at 650°C.
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Question: I've done both of the graphs and generated an equation from excel, I just need help
explaining A-B. Below is just the information I used to get the graphs obtain the graph please help.
Prepare two graphs, the first with the percent transmission on the vertical axis and concentration on
the horizontal axis and the second with absorption on the vertical axis and concentration on the
horizontal axis.
Solution #
Unknown
Concentration (mol/L)
Transmittance
Absorption
9.88x101
635
0.17
1.98x101
47%
0.33
2.95x101
31%
0.51
3.95x10
21%
0.68
4.94x10
14%
24%
0.85
0.62
A.) Give an equation that relates either the % transmission or the absorption to the concentration. Explain how you
arrived at your equation.
B.) What is the relationship between the percent transmission and the absorption?
C.) Determine the concentration of the ironlll) salicylate in the unknown directly from the graph and from the best fit
trend-line (least squares analysis) of the graph that yielded a straight…
Chapter 18 Solutions
Student Solutions Manual for Ebbing/Gammon's General Chemistry, 11th
Ch. 18.2 - You have a sample of 1.0 mg of solid iodine at...Ch. 18.2 - Liquid ethanol, C2H5OH(l), at 25C has an entropy...Ch. 18.3 - Prob. 18.2ECh. 18.3 - Prob. 18.3ECh. 18.4 - Calculate G for the following reaction at 25C. Use...Ch. 18.4 - Prob. 18.5ECh. 18.4 - Prob. 18.6ECh. 18.4 - Prob. 18.2CCCh. 18.6 - Give the expression for K for each of the...Ch. 18.6 - Use the data from Table 18.2 to obtain the...
Ch. 18.6 - Prob. 18.9ECh. 18.6 - Prob. 18.3CCCh. 18.7 - Consider the decomposition of dinitrogen...Ch. 18.7 - The thermodynamic equilibrium constant for the...Ch. 18.7 - To what temperature must magnesium carbonate be...Ch. 18 - What is a spontaneous process? Give three examples...Ch. 18 - Which contains greater entropy, a quantity of...Ch. 18 - State the second law of thermodynamics.Ch. 18 - The entropy change S for a phase transition equals...Ch. 18 - Describe how the standard entropy of hydrogen gas...Ch. 18 - Describe what you would look for in a reaction...Ch. 18 - Define the free energy G. How is G related to H...Ch. 18 - What is meant by the standard free-energy change G...Ch. 18 - Prob. 18.9QPCh. 18 - Prob. 18.10QPCh. 18 - Prob. 18.11QPCh. 18 - Prob. 18.12QPCh. 18 - Prob. 18.13QPCh. 18 - Prob. 18.14QPCh. 18 - Prob. 18.15QPCh. 18 - Prob. 18.16QPCh. 18 - Prob. 18.17QPCh. 18 - You run a reaction that has a negative entropy...Ch. 18 - Prob. 18.19QPCh. 18 - Given the following information at 25C, calculate...Ch. 18 - Prob. 18.21QPCh. 18 - Prob. 18.22QPCh. 18 - For each of the following statements, indicate...Ch. 18 - Which of the following are spontaneous processes?...Ch. 18 - Prob. 18.25QPCh. 18 - Predict the sign of the entropy change for each of...Ch. 18 - Hypothetical elements A(g) and B(g) are introduced...Ch. 18 - Prob. 18.28QPCh. 18 - Prob. 18.29QPCh. 18 - Describe how you would expect the spontaneity (G)...Ch. 18 - Chloroform, CHCl3, is a solvent and has been used...Ch. 18 - Diethyl ether (known simply as ether), (C2H5)2O,...Ch. 18 - The enthalpy change when liquid methanol. CH3OH,...Ch. 18 - The heat of vaporization of carbon disulfide, CS2,...Ch. 18 - Predict the sign of S, if possible, for each of...Ch. 18 - Predict the sign of S, if possible, for each of...Ch. 18 - Calculate S for the following reactions, using...Ch. 18 - Calculate S for the following reactions, using...Ch. 18 - Calculate S for the reaction...Ch. 18 - What is the change in entropy, S, for the reaction...Ch. 18 - Using enthalpies of formation (Appendix C),...Ch. 18 - Using enthalpies of formation (Appendix C),...Ch. 18 - The free energy of formation of one mole of...Ch. 18 - The free energy of formation of one mole of...Ch. 18 - Calculate the standard free energy of the...Ch. 18 - Calculate the standard free energy of the...Ch. 18 - On the basis of G for each of the following...Ch. 18 - For each of the following reactions, state whether...Ch. 18 - Calculate H and G for the following reactions at...Ch. 18 - Calculate H and G for the following reactions at...Ch. 18 - Consider the reaction of 2 mol H2(g) at 25C and 1...Ch. 18 - Consider the reaction of 1 mol H2(g) at 25C and 1...Ch. 18 - What is the maximum work that could be obtained...Ch. 18 - What is the maximum work that could be obtained...Ch. 18 - Give the expression for the thermodynamic...Ch. 18 - Write the expression for the thermodynamic...Ch. 18 - What is the standard free-energy change G at 25C...Ch. 18 - What is the standard free-energy change G at 25C...Ch. 18 - Calculate the standard free-energy change and the...Ch. 18 - Calculate the standard free-energy change and the...Ch. 18 - Obtain the equilibrium constant Kc at 25C from the...Ch. 18 - Calculate the equilibrium constant Kc at 25C from...Ch. 18 - Use data given in Tables 6.2 and 18.1 to obtain...Ch. 18 - Use data given in Tables 6.2 and 18.1 to obtain...Ch. 18 - Sodium carbonate, Na2CO3, can be prepared by...Ch. 18 - Oxygen was first prepared by heating mercury(II)...Ch. 18 - Prob. 18.67QPCh. 18 - The combustion of acetylene, C2H2, is a...Ch. 18 - Prob. 18.69QPCh. 18 - Prob. 18.70QPCh. 18 - Acetic acid, CH3COOH, freezes at 16.6C. The heat...Ch. 18 - Acetone, CH3COCH3, boils at 56C. The heat of...Ch. 18 - Prob. 18.73QPCh. 18 - Prob. 18.74QPCh. 18 - Prob. 18.75QPCh. 18 - Ethanol burns in air or oxygen according to the...Ch. 18 - Acetic acid in vinegar results from the bacterial...Ch. 18 - Prob. 18.78QPCh. 18 - Is the following reaction spontaneous as written?...Ch. 18 - Is the following reaction spontaneous as written?...Ch. 18 - Prob. 18.81QPCh. 18 - The reaction N2(g)+3H2(g)2NH3(g) is spontaneous at...Ch. 18 - Prob. 18.83QPCh. 18 - Calculate G at 25C for the reaction...Ch. 18 - Prob. 18.85QPCh. 18 - Consider the reaction CS2(g)+4H2(g)CH4(g)+2H2S(g)...Ch. 18 - Prob. 18.87QPCh. 18 - a From a consideration of the following reactions,...Ch. 18 - For the reaction CH3OH(l)+32O2(g)2H2O(l)+CO2(g)...Ch. 18 - Prob. 18.90QPCh. 18 - Prob. 18.91QPCh. 18 - Tungsten is usually produced by the reduction of...Ch. 18 - For the decomposition of formic acid,...Ch. 18 - Prob. 18.94QPCh. 18 - For the reaction 2Cu(s)+S(s)Cu2S(s) H and G are...Ch. 18 - Prob. 18.96QPCh. 18 - When 1.000 g of gaseous butane, C4H10, is burned...Ch. 18 - When 1.000 g of ethylene glycol, C2H6O2, is burned...Ch. 18 - a Calculate K1, at 25C for phosphoric acid:...Ch. 18 - a Calculate K1, at 25C for sulfurous acid:...Ch. 18 - The direct reaction of iron(III) oxide. Fe2O3, to...Ch. 18 - Prob. 18.102QPCh. 18 - Prob. 18.103QPCh. 18 - Prob. 18.104QPCh. 18 - Prob. 18.105QPCh. 18 - Cobalt(II) chloride hexahydrate, CoCl26H2O, is a...Ch. 18 - Prob. 18.107QPCh. 18 - Hydrogen gas and iodine vapor react to produce...Ch. 18 - Silver carbonate, Ag2CO3, is a light yellow...Ch. 18 - Prob. 18.110QPCh. 18 - Adenosine triphosphate, ATP, is used as a...Ch. 18 - Prob. 18.112QPCh. 18 - Prob. 18.113QPCh. 18 - Prob. 18.114QPCh. 18 - Sodium acetate crystallizes from a supersaturated...Ch. 18 - According to a source, lithium peroxide (Li2O2)...Ch. 18 - Tetrachloromethane (carbon tetrachloride), CCl4,...Ch. 18 - Prob. 18.118QPCh. 18 - Prob. 18.119QPCh. 18 - Prob. 18.120QPCh. 18 - Prob. 18.121QPCh. 18 - Coal is used as a fuel in some electric-generating...Ch. 18 - Hydrogen bromide dissociates into its gaseous...Ch. 18 - Hydrogen gas and iodine gas react to form hydrogen...Ch. 18 - Prob. 18.125QPCh. 18 - Prob. 18.126QPCh. 18 - Ka for acetic acid at 25.0C is 1754 105. At...Ch. 18 - Ksp for silver chloride at 25.0C is 1.782 1010....
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