Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Chapter 20, Problem 82AE
Interpretation Introduction
Interpretation: The difference in the resistivity of diamond and graphite is to be explained on the basis of their structures.
Concept introduction: Resistivity is a measure of electrical resistance. The resistivity of graphite is
To determine: The difference in the resistivity of diamond and graphite on the basis of their structures.
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Ammonia is an important chemical used in the
production of fertilizer. Industrial production of
ammonia from atmospheric nitrogen is difficult
because of the energy required to cleave the
N-N triple bond. Consider the balanced reaction
of ammonia: N2(g) + 3H2(g) → 2 NH3 (9).
This reaction has a value of K = 4.3 x 10-2 at 25
°C.
Part A
Estimate the AH for this reaction using bond energies.
Bond
Bond Dissociation
Energy
kcal/mol (kJ/mol)
N-H 93 (391)
N-N 38 (160)
H-H 103 (432)
N = N 226 (946)
Express your answer as an integer.
ΜΕ ΑΣΦ
?
kJ/mol
Calculate the standard enthalpy of formation of the M20(s) metal oxide (AH in
kJ/mol) using the following data:
Bond dissociation enthalpy of O2(g) = +498 kJ/mol
First electron affinity of O = -141 kJ/mol
Second electron affinity of O = +744 kJ/mol
Enthalpy of sublimation of M = + 124 kJ/mol
First ionization energy of M = + 372 kJ/mol
Lattice enthalpy of M20(s) = -2115 kJ/mol
Refer to the textbook for definitions of ionization energy and electron affinity. Do
not use scientific notation for your answer. Do not enter units.
Your Answer:
Answer
Calculate the standard enthalpy of formation of the M2O(s) metal oxide (AH+ in
kJ/mol) using the following data:
Bond dissociation enthalpy of O2(g) = +498 kJ/mol
First electron affinity of O = -141 kJ/mol
Second electron affinity of O = +744 kJ/mol
Enthalpy of sublimation of M + 116 kJ/mol
First ionization energy of M = + 463 kJ/mol
Lattice enthalpy of M₂O(s) = -2248 kJ/mol
Refer to sections 9.4 and 9.5 in the textbook for definitions of ionization energy and
electron affinity. Do not use scientific notation for your answer. Do not enter units.
Your Answer:
Chapter 20 Solutions
Chemistry
Ch. 20 - What are the two most abundant elements by mass in...Ch. 20 - Prob. 2RQCh. 20 - Prob. 3RQCh. 20 - What is the valence electron configuration for the...Ch. 20 - Prob. 5RQCh. 20 - Prob. 6RQCh. 20 - Table 19-14 lists some common nitrogen compounds...Ch. 20 - Prob. 8RQCh. 20 - Prob. 9RQCh. 20 - Prob. 10RQ
Ch. 20 - Prob. 1QCh. 20 - Prob. 2QCh. 20 - Prob. 3QCh. 20 - Diagonal relationships in the periodic table exist...Ch. 20 - Prob. 6QCh. 20 - Prob. 7QCh. 20 - Prob. 8QCh. 20 - All the Group 1A (1) and 2A (2) metals are...Ch. 20 - Prob. 10QCh. 20 - Prob. 11QCh. 20 - The major industrial use of hydrogen is in the...Ch. 20 - Prob. 13QCh. 20 - Prob. 14QCh. 20 - Prob. 17ECh. 20 - Prob. 18ECh. 20 - Prob. 19ECh. 20 - Prob. 20ECh. 20 - Prob. 21ECh. 20 - Prob. 22ECh. 20 - Prob. 23ECh. 20 - Prob. 24ECh. 20 - Prob. 25ECh. 20 - Electrolysis of an alkaline earth metal chloride...Ch. 20 - Prob. 28ECh. 20 - Prob. 29ECh. 20 - Prob. 30ECh. 20 - Prob. 31ECh. 20 - Prob. 32ECh. 20 - Boron hydrides were once evaluated for possible...Ch. 20 - Prob. 34ECh. 20 - Prob. 35ECh. 20 - Prob. 36ECh. 20 - Prob. 37ECh. 20 - Prob. 38ECh. 20 - Prob. 39ECh. 20 - Prob. 40ECh. 20 - The following illustration shows the orbitals used...Ch. 20 - Prob. 42ECh. 20 - Silicon is produced for the chemical and...Ch. 20 - Prob. 44ECh. 20 - The compound Pb3O4 (red lead) contains a mixture...Ch. 20 - Prob. 46ECh. 20 - Prob. 47ECh. 20 - Prob. 48ECh. 20 - Prob. 49ECh. 20 - Prob. 50ECh. 20 - Prob. 51ECh. 20 - Prob. 52ECh. 20 - Prob. 53ECh. 20 - Prob. 54ECh. 20 - Prob. 55ECh. 20 - Phosphate buffers are important in regulating the...Ch. 20 - Prob. 57ECh. 20 - Trisodium phosphate (TSP) is an effective grease...Ch. 20 - Prob. 59ECh. 20 - Prob. 60ECh. 20 - Prob. 61ECh. 20 - Complete and balance each of the following...Ch. 20 - Prob. 63ECh. 20 - Prob. 64ECh. 20 - How can the paramagnetism of O2 be explained using...Ch. 20 - Describe the bonding in SO2 and SO3 using the...Ch. 20 - Write the Lewis structure for O2F2. Predict the...Ch. 20 - Give the Lewis structure, molecular structure, and...Ch. 20 - Prob. 69ECh. 20 - Prob. 70ECh. 20 - Prob. 71ECh. 20 - Prob. 72ECh. 20 - Prob. 73ECh. 20 - Prob. 74ECh. 20 - Prob. 75ECh. 20 - Prob. 76ECh. 20 - Prob. 77ECh. 20 - Prob. 78ECh. 20 - Prob. 79AECh. 20 - The inert-pair effect is sometimes used to explain...Ch. 20 - How could you determine experimentally whether the...Ch. 20 - Prob. 82AECh. 20 - Prob. 83AECh. 20 - Prob. 84AECh. 20 - Prob. 85AECh. 20 - Hydrazine is somewhat toxic. Use the following...Ch. 20 - Prob. 87AECh. 20 - Draw Lewis structures for the AsCl4+ and AsCl6...Ch. 20 - There are two forms of solid sulfur: rhombic and...Ch. 20 - Prob. 90AECh. 20 - Prob. 91AECh. 20 - What is a disproportionation reaction? Use the...Ch. 20 - Sulfur forms a wide variety of compounds in which...Ch. 20 - Prob. 94AECh. 20 - Prob. 95CWPCh. 20 - Prob. 96CWPCh. 20 - Prob. 97CWPCh. 20 - Prob. 98CWPCh. 20 - Prob. 99CWPCh. 20 - Nitrous oxide (N2O) can be produced by thermal...Ch. 20 - What is the hybridization of the central atom in...Ch. 20 - Prob. 102CWPCh. 20 - Prob. 103CWPCh. 20 - Prob. 104CWPCh. 20 - Prob. 105CPCh. 20 - Prob. 106CPCh. 20 - Lead forms compounds in the +2 and +4 oxidation...Ch. 20 - Prob. 108CPCh. 20 - Prob. 109CPCh. 20 - Prob. 110CPCh. 20 - You travel to a distant, cold planet where the...Ch. 20 - Prob. 112CPCh. 20 - Prob. 113CPCh. 20 - Provide a reasonable estimate for the number of...Ch. 20 - Prob. 116IPCh. 20 - Prob. 117IPCh. 20 - Although nitrogen trifluoride (NF3) is a thermally...Ch. 20 - While selenic acid has the formula H2SeO4 and thus...Ch. 20 - Prob. 120MPCh. 20 - Prob. 121MP
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NEET Chemistry | Group 14 Carbon Family | Theory & Problem Solving | In English | Misostudy; Author: Misostudy;https://www.youtube.com/watch?v=enOGIrcHh54;License: Standard YouTube License, CC-BY