Chemistry
13th Edition
ISBN: 9781260162370
Author: Chang
Publisher: MCG
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Textbook Question
Chapter 17, Problem 17.94QP
The sublimation of carbon dioxide at −78°C is
Calculate ΔSsub when 84.8 g of CO2 sublimes at this temperature.
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Students have asked these similar questions
1) a) Give the dominant Intermolecular Force (IMF) in a sample of each of the following
compounds. Please show your work. (8) SF2, CH,OH, C₂H₂
b) Based on your answers given above, list the compounds in order of their Boiling Point
from low to high. (8)
19.78 Write the products of the following sequences of reactions. Refer to your reaction road-
maps to see how the combined reactions allow you to "navigate" between the different
functional groups. Note that you will need your old Chapters 6-11 and Chapters 15-18
roadmaps along with your new Chapter 19 roadmap for these.
(a)
1. BHS
2. H₂O₂
3. H₂CrO4
4. SOCI₂
(b)
1. Cl₂/hv
2. KOLBU
3. H₂O, catalytic H₂SO4
4. H₂CrO4
Reaction
Roadmap
An alkene 5. EtOH
6.0.5 Equiv. NaOEt/EtOH
7. Mild H₂O
An alkane
1.0
2. (CH3)₂S
3. H₂CrO
(d)
(c)
4. Excess EtOH, catalytic H₂SO
OH
4. Mild H₂O*
5.0.5 Equiv. NaOEt/EtOH
An alkene 6. Mild H₂O*
A carboxylic
acid
7. Mild H₂O*
1. SOC₁₂
2. EtOH
3.0.5 Equiv. NaOEt/E:OH
5.1.0 Equiv. NaOEt
6.
NH₂
(e)
1. 0.5 Equiv. NaOEt/EtOH
2. Mild H₂O*
Br
(f)
i
H
An aldehyde
1. Catalytic NaOE/EtOH
2. H₂O*, heat
3. (CH,CH₂)₂Culi
4. Mild H₂O*
5.1.0 Equiv. LDA
Br
An ester
4. NaOH, H₂O
5. Mild H₂O*
6. Heat
7.
MgBr
8. Mild H₂O*
7. Mild H₂O+
Li+ is a hard acid. With this in mind, which if the following compounds should be most soluble in water?
Group of answer choices
LiBr
LiI
LiF
LiCl
Chapter 17 Solutions
Chemistry
Ch. 17.3 - How does the entropy of a system change for each...Ch. 17.3 - For which of the following physical changes is S...Ch. 17.3 - Determine if the sign for S is positive or...Ch. 17.4 - Prob. 2PECh. 17.4 - Prob. 3PECh. 17.4 - Calculate the standard entropy change for the...Ch. 17.4 - Consider the gas-phase reaction of A2 (blue) and...Ch. 17.5 - Prob. 4PECh. 17.5 - The molar heats of fusion and vaporization of...Ch. 17.5 - Under what circumstances will an endothermic...
Ch. 17.5 - Prob. 2RCFCh. 17.5 - Prob. 3RCFCh. 17.5 - Prob. 4RCFCh. 17.6 - Calculate the equilibrium constant (KP) for the...Ch. 17.6 - Prob. 7PECh. 17.6 - Prob. 8PECh. 17.6 - A reaction has a positive H and a negative S.Is...Ch. 17.6 - For the reaction A(g)+B(g)C(g) G = 33.3 kJ/mol at...Ch. 17.6 - For the reaction C(aq)A(aq)+B(aq) G = 1.95 kJ/mol...Ch. 17 - Explain what is meant by a spontaneous process....Ch. 17 - State which of the following processes are...Ch. 17 - Prob. 17.3QPCh. 17 - Define entropy. What are the units of entropy?Ch. 17 - How does the entropy of a system change for each...Ch. 17 - State the second law of thermodynamics in words...Ch. 17 - State the third law of thermodynamics and explain...Ch. 17 - For each pair of substances listed here, choose...Ch. 17 - Arrange the following substances (1 mole each) in...Ch. 17 - Using the data in Appendix 2, calculate the...Ch. 17 - Using the data in Appendix 2, calculate the...Ch. 17 - Without consulting Appendix 2, predict whether the...Ch. 17 - Prob. 17.14QPCh. 17 - Define free energy. What are its units?Ch. 17 - Why is it more convenient to predict the direction...Ch. 17 - Calculate G for the following reactions at 25C:...Ch. 17 - Calculate G for the following reactions at 25C:...Ch. 17 - From the values of H and S, predict which of the...Ch. 17 - Find the temperatures at which reactions with the...Ch. 17 - Explain the difference between G and G.Ch. 17 - Explain why Equation (17.14). is of great...Ch. 17 - Calculate KP for the following reaction at 25C:...Ch. 17 - For the autoionization of water at 25C,...Ch. 17 - Consider the following reaction at 25C:...Ch. 17 - Calculate G and KP for the following equilibrium...Ch. 17 - (a) Calculate G and KP for the following...Ch. 17 - The equilibrium constant (KP) for the reaction...Ch. 17 - Consider the decomposition of calcium carbonate:...Ch. 17 - The equilibrium constant KP for the reaction...Ch. 17 - At 25C, G for the process H2O(l)H2O(g) is 8.6...Ch. 17 - Calculate G for the process C(diamond)C(graphite)...Ch. 17 - What is a coupled reaction? What is its importance...Ch. 17 - What is the role of ATP in biological reactions?Ch. 17 - Referring to the metabolic process involving...Ch. 17 - In the metabolism of glucose, the first step is...Ch. 17 - Explain the following nursery rhyme in terms of...Ch. 17 - Calculate G for the reaction H2O(l)H+(aq)+OH(aq)...Ch. 17 - Calculate the Ssoln for the following processes:...Ch. 17 - The following reaction is spontaneous at a certain...Ch. 17 - Which of the following thermodynamic functions are...Ch. 17 - A student placed 1 g of each of three compounds A,...Ch. 17 - Use the data in Appendix 2 to calculate the...Ch. 17 - Predict the signs of H, S, and G of the system for...Ch. 17 - Prob. 17.45QPCh. 17 - Ammonium nitrate (NH4NO3) dissolves spontaneously...Ch. 17 - Calculate the equilibrium pressure of CO2 due to...Ch. 17 - Prob. 17.48QPCh. 17 - Prob. 17.49QPCh. 17 - Carbon monoxide (CO) and nitric oxide (NO) are...Ch. 17 - Prob. 17.51QPCh. 17 - Use the thermodynamic data in Appendix 2 to...Ch. 17 - Consider the reaction A B + C at 298 K. Given...Ch. 17 - The Ksp of AgCl is given in Table 16.2. What is...Ch. 17 - Prob. 17.55QPCh. 17 - Water gas, a mixture of H2 and CO, is a fuel made...Ch. 17 - Consider the following Brnstead acid-base reaction...Ch. 17 - Crystallization of sodium acetate from a...Ch. 17 - Prob. 17.59QPCh. 17 - A certain reaction is spontaneous at 72C. If the...Ch. 17 - Predict whether the entropy change is positive or...Ch. 17 - 17.62The reaction NH3(g)+HCl(g)NH4Cl(s) proceeds...Ch. 17 - Prob. 17.63QPCh. 17 - The molar heat of vaporization of ethanol is 39.3...Ch. 17 - Prob. 17.65QPCh. 17 - In the Mond process for the purification of...Ch. 17 - Calculate G and KP for the following processes at...Ch. 17 - Calculate the pressure of O2 (in atm) over a...Ch. 17 - Prob. 17.69QPCh. 17 - Prob. 17.70QPCh. 17 - Consider the reaction N2(g)+O2(g)2NO(g) Given that...Ch. 17 - Prob. 17.72QPCh. 17 - Prob. 17.73QPCh. 17 - Prob. 17.74QPCh. 17 - Prob. 17.75QPCh. 17 - Prob. 17.76QPCh. 17 - Prob. 17.77QPCh. 17 - Prob. 17.78QPCh. 17 - Prob. 17.79QPCh. 17 - Prob. 17.80QPCh. 17 - Prob. 17.81QPCh. 17 - Prob. 17.82QPCh. 17 - Prob. 17.83QPCh. 17 - Prob. 17.84QPCh. 17 - Shown here are the thermodynamic data for ethanol:...Ch. 17 - The reaction shown here is spontaneous at a...Ch. 17 - Consider two carboxylic acids (acids that contain...Ch. 17 - Many hydrocarbons exist as structural isomers,...Ch. 17 - Use the thermodynamic data in Appendix 2 to...Ch. 17 - A rubber band is stretched vertically by attaching...Ch. 17 - One of the steps in the extraction of iron from...Ch. 17 - Derive the equation G=RTln(Q/K) where Q is the...Ch. 17 - The sublimation of carbon dioxide at 78C is...Ch. 17 - Entropy has sometimes been described as times...Ch. 17 - Referring to Figure 17.1, we see that the...Ch. 17 - A student looked up the Gf, Hf, and S values for...Ch. 17 - Consider the following reaction at 298 K:...Ch. 17 - As an approximation, we can assume that proteins...Ch. 17 - Which of the following are not state functions: S,...Ch. 17 - Which of the following is not accompanied by an...Ch. 17 - Hydrogenation reactions (for example, the process...Ch. 17 - Give a detailed example of each of the following,...Ch. 17 - At 0 K, the entropy of carbon monoxide crystal is...Ch. 17 - Comment on the correctness of the analogy...Ch. 17 - The standard enthalpy of formation and the...Ch. 17 - In chemistry, the standard state for as solution...Ch. 17 - The following diagram shows the variation of the...Ch. 17 - Consider the gas-phase reaction between A2 (green)...Ch. 17 - The KP for the reaction N2+3H22NH3 is 2.4 103 at...Ch. 17 - The table shown here lists the ion-product...Ch. 17 - Draw the missing distributions in Figure 17.2....Ch. 17 - The reaction NH3(g)+HCl(g)NH4Cl(s) is spontaneous...Ch. 17 - The boiling point of diethyl ether is 34.6C....Ch. 17 - Nicotine is the compound in tobacco responsible...Ch. 17 - Estimate S for the process depicted in Figure...Ch. 17 - At what point in the series HOnH(g) (n = 1, 2, 3,...
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