General Chemistry: Principles and Modern Applications (11th Edition)
11th Edition
ISBN: 9780132931281
Author: Ralph H. Petrucci, F. Geoffrey Herring, Jeffry D. Madura, Carey Bissonnette
Publisher: PEARSON
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Textbook Question
Chapter 21, Problem 53E
Would you expect the reaction of Sn(s) and
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At 400 °C, the AG°an for the oxidation of a monoatomic liquid element Z in the presence of O2(9) forming ZO()
is -25.0 kJ per mol 02. In the compound zo(e), Z has a +2 formal charge. Which of the following statements is
CORRECT?
O Z cannot be oxidized to ZO because Z is more stable than ZO at 400 °C or any T above it.
O zo cannot be reduced back to Z at any temperature because reduction of ZO to Z has +AG.
O The oxidation of Z with 02 is exothermic.
The oxidation of Z with 02 is marked by an increase in entropy.
At 400 °C, the AG an for the oxidation of a monoatomic liquid element Z in the presence of 02(g) forming ZO) is -25.0 kJ per mol O2. In the compound ZOs, Z has
a +2 formal charge. Which of the following statements is CORRECT?
The oxidation of Z with O2 is marked by an increase in entropy.
O Z cannot be oxidized to Z0 because Z is more stable than ZO at 400 °C or any T above it.
O The oxidation of Z with 02 is exothermic,
O zo cannot be reduced back to Z at any temperature because reduction of ZO to Z has +AG.
b. Show that CaCl does not exist
because the enthalpy for the
disproportionation reaction is
favorable:
2CaCl(s) → Ca(s) + CaCl2(s)
Chapter 21 Solutions
General Chemistry: Principles and Modern Applications (11th Edition)
Ch. 21 - Prob. 1ECh. 21 - Use information from the chapter to write chemical...Ch. 21 - Prob. 3ECh. 21 - Describe two methods for determining the identity...Ch. 21 - Arrange the following compounds in the expected...Ch. 21 - Prob. 6ECh. 21 - Prob. 7ECh. 21 - A lithium battery used in a cardiac pacemaker has...Ch. 21 - Prob. 9ECh. 21 - Prob. 10E
Ch. 21 - The standard Gibbs energies of formation, rG , for...Ch. 21 - Prob. 12ECh. 21 - Prob. 13ECh. 21 - Prob. 14ECh. 21 - Prob. 15ECh. 21 - Prob. 16ECh. 21 - Prob. 17ECh. 21 - Write chemical equations for the reactions you...Ch. 21 - Without performing detailed calculations, indicate...Ch. 21 - Prob. 20ECh. 21 - With respect to decomposition to MO(s) and SO2(g)...Ch. 21 - Prob. 22ECh. 21 - Prob. 23ECh. 21 - Prob. 24ECh. 21 - Prob. 25ECh. 21 - Prob. 26ECh. 21 - Prob. 27ECh. 21 - Prob. 28ECh. 21 - Prob. 29ECh. 21 - Prob. 30ECh. 21 - Prob. 31ECh. 21 - Prob. 32ECh. 21 - Prob. 33ECh. 21 - Prob. 34ECh. 21 - Prob. 35ECh. 21 - Prob. 36ECh. 21 - Prob. 37ECh. 21 - Prob. 38ECh. 21 - Prob. 39ECh. 21 - Prob. 40ECh. 21 - Prob. 41ECh. 21 - Prob. 42ECh. 21 - Prob. 43ECh. 21 - Prob. 44ECh. 21 - Methane and sulfur vapor react to form carbon...Ch. 21 - Prob. 46ECh. 21 - Prob. 47ECh. 21 - Prob. 48ECh. 21 - Write plausible chemical equations for the (a)...Ch. 21 - Prob. 50ECh. 21 - Prob. 51ECh. 21 - Aqueous tin(II) ion, Sn2+(aq) , is a good reducing...Ch. 21 - Would you expect the reaction of Sn(s) and Cl2(g)...Ch. 21 - Prob. 54ECh. 21 - Prob. 55IAECh. 21 - The following series of observations is made: (1)...Ch. 21 - Prob. 57IAECh. 21 - Prob. 58IAECh. 21 - Prob. 59IAECh. 21 - Prob. 60IAECh. 21 - Lithium superoxide, LiO2(s) , has never been...Ch. 21 - Prob. 62IAECh. 21 - Prob. 63IAECh. 21 - Prob. 64IAECh. 21 - Use data from Appendix D (Table D-2) to calculate...Ch. 21 - Prob. 66IAECh. 21 - A particular water sample contains 56.9 ppm SO42-...Ch. 21 - An aluminum production cell of the type pictured...Ch. 21 - Prob. 69IAECh. 21 - Prob. 70IAECh. 21 - Prob. 71IAECh. 21 - Prob. 72IAECh. 21 - Prob. 73IAECh. 21 - Prob. 74IAECh. 21 - Prob. 75IAECh. 21 - Would you expect the lattice energy of MgS(s) to...Ch. 21 - Prob. 77IAECh. 21 - Prob. 78FPCh. 21 - Prob. 79FPCh. 21 - Prob. 80SAECh. 21 - Briefly describe each of the following ideas,...Ch. 21 - Explain the important distinction between each...Ch. 21 - Prob. 83SAECh. 21 - Prob. 84SAECh. 21 - Predict the products of the following reactions:...Ch. 21 - A chemist knows that aluminum is more reactive...Ch. 21 - Listed are several pairs of substances. For some...Ch. 21 - Prob. 88SAECh. 21 - Prob. 89SAECh. 21 - Prob. 90SAECh. 21 - Prob. 91SAECh. 21 - Prob. 92SAECh. 21 - Prob. 93SAECh. 21 - Prob. 94SAECh. 21 - Prob. 95SAE
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- Which member of the following pairs would you expect to be more energetically stable? Justify each choice. a. NaBr or NaBr2 b. ClO4 or ClO4 c. SO4 or XeO4 d. OF4 or SeF4arrow_forwardWhy is SnCl4 not classified as a salt?arrow_forward(a) Which poisonous gas is evolved when white phosphorus is heated with Cone. NaOH solution? Write the chemical equation. (b) Write the formula of first noble gas compound prepared by N. Bartlett. What inspired N. Bartlett to prepare this compound? (c) Fluorine is a stronger oxidising agent than chlorine. Why? (d)Write one use of chlorine gas.arrow_forward
- A student observes that the solution containing Br₂ is reddish, a solution of Cl₂ is faintly yellow-green, and a solution of 12 is faintly violet. The student mixes a cyclohexane solution containing Br₂ with a halide solution containing I. After mixing, the student observes that the cyclohexane layer is faintly violet. What species is present in the halogen layer? Did a reaction occur? Select one: I₂, no reaction O Br. reaction occurred I2, reaction occurred. Br, no reaction I, reaction occurred Br₂, no reaction I, no reaction Br₂, reaction occurredarrow_forward9. Assume that you have these materials: a) Li (s); b) Br2 (I); Ge (s) and d) Si(s). Choose the best electrical conductor among them and explain why.arrow_forwardExplain why the bond between B and Cl in the molecule BCl3 is shorter than would be expected for a single B—Cl bond.arrow_forward
- 57. The space shuttle orbiter utilizes the oxidation of methyl- hydrazine by dinitrogen tetroxide for propulsion: 4N,H,CH3() + SN,0,(1) → 12H,0(g) + 9N,(g) + 4CO,(g) Calculate AH for this reaction using data in Appendix 4.arrow_forwardAnswer the questions in the table below about the shape of the borane (BH3) molecule. How many electron groups are around the central boron atom? Note: one "electron group" means one lone pair, one single bond, one double bond, or one triple bond. What phrase best describes the arrangement of these electron groups around the central boron atom? (You may need to use the scrollbar to see all the choices.) (choose one) X G <arrow_forwardEven though EN values vary relatively little down Group4A(14), the elements change from nonmetal to metal. Explain.arrow_forward
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