Chemistry with Access Code, Hybrid Edition
9th Edition
ISBN: 9781285188492
Author: Steven S. Zumdahl
Publisher: CENGAGE L
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Chapter 20, Problem 6Q
Interpretation Introduction
Interpretation: The structure of hard substance silicon carbide
Concept introduction: Silicon carbide
To propose: The structure of hard substance Silicon carbide
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2. (3 pts) Consider the unit cell for the spinel compound,
CrFe204. How many total particles are in the unit cell?
Also, show how the number of particles and their
positions are consistent with the CrFe204
stoichiometry - this may or may not be reflected by the
particle colors in the diagram. (HINT: In the diagram,
the blue particle is in an interior position while each red
particle is either in a corner or face position.)
From the following potentials, calculate the activity of Cl- in saturated KCl.
E0 (calomel electrode)= 0.268 V
E (calomel electrode, saturated KCl)= 0.241 V
Calculate the voltage of each of the following cells.
a) Fe(s)/Fe2+ (1.55 x 10-2 M)//Cu2+ (6.55 x 10-3 M)/Cu(s)
b) Pt, H2 (0.255 bar)/HCl (4.55 x 10-4 M), AgCl (sat'd)/Ag
Fe2+ +2e- = Fe E0= -0.44 V
Cu2+ + 2e- = Cu E0= 0.337 V
Ag+ + e- = Ag E0= 0.799 V
AgCl(s) + e- = Ag(s) + Cl- E0= 0.222 V
2H+ + 2e- = H2 E0= 0.000 V
Chapter 20 Solutions
Chemistry with Access Code, Hybrid Edition
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. 13ECh. 20 - Prob. 14ECh. 20 - Prob. 15ECh. 20 - Prob. 16ECh. 20 - Prob. 17ECh. 20 - Prob. 18ECh. 20 - Prob. 19ECh. 20 - Prob. 20ECh. 20 - Prob. 21ECh. 20 - Electrolysis of an alkaline earth metal chloride...Ch. 20 - Prob. 24ECh. 20 - Prob. 25ECh. 20 - Prob. 26ECh. 20 - Boron hydrides were once evaluated for possible...Ch. 20 - Prob. 28ECh. 20 - Prob. 29ECh. 20 - Prob. 30ECh. 20 - Prob. 31ECh. 20 - Prob. 32ECh. 20 - Prob. 33ECh. 20 - Prob. 34ECh. 20 - The following illustration shows the orbitals used...Ch. 20 - Prob. 36ECh. 20 - Silicon is produced for the chemical and...Ch. 20 - Prob. 38ECh. 20 - The compound Pb3O4 (red lead) contains a mixture...Ch. 20 - Prob. 40ECh. 20 - Prob. 41ECh. 20 - Prob. 42ECh. 20 - Prob. 43ECh. 20 - Prob. 44ECh. 20 - Prob. 45ECh. 20 - Prob. 46ECh. 20 - Prob. 47ECh. 20 - Prob. 48ECh. 20 - Prob. 49ECh. 20 - Phosphate buffers are important in regulating the...Ch. 20 - Prob. 51ECh. 20 - Trisodium phosphate (TSP) is an effective grease...Ch. 20 - Prob. 53ECh. 20 - Prob. 54ECh. 20 - Prob. 55ECh. 20 - Complete and balance each of the following...Ch. 20 - Prob. 57ECh. 20 - Prob. 58ECh. 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. 63ECh. 20 - Prob. 64ECh. 20 - Prob. 65ECh. 20 - Prob. 66ECh. 20 - Prob. 67ECh. 20 - Prob. 68ECh. 20 - Prob. 69ECh. 20 - Prob. 70ECh. 20 - Prob. 71ECh. 20 - Prob. 72ECh. 20 - Prob. 73AECh. 20 - The inert-pair effect is sometimes used to explain...Ch. 20 - How could you determine experimentally whether the...Ch. 20 - Prob. 76AECh. 20 - Prob. 77AECh. 20 - Prob. 78AECh. 20 - Prob. 79AECh. 20 - Draw Lewis structures for the AsCl4+ and AsCl6...Ch. 20 - Prob. 81AECh. 20 - Prob. 82AECh. 20 - Prob. 83AECh. 20 - What is a disproportionation reaction? Use the...Ch. 20 - Sulfur forms a wide variety of compounds in which...Ch. 20 - Prob. 86AECh. 20 - Prob. 87CWPCh. 20 - Prob. 88CWPCh. 20 - Prob. 89CWPCh. 20 - Prob. 90CWPCh. 20 - Prob. 91CWPCh. 20 - Nitrous oxide (N2O) can be produced by thermal...Ch. 20 - What is the hybridization of the central atom in...Ch. 20 - Prob. 94CWPCh. 20 - Prob. 95CWPCh. 20 - Prob. 96CWPCh. 20 - Prob. 97CPCh. 20 - Prob. 98CPCh. 20 - Lead forms compounds in the +2 and +4 oxidation...Ch. 20 - Prob. 100CPCh. 20 - Prob. 101CPCh. 20 - Prob. 102CPCh. 20 - You travel to a distant, cold planet where the...Ch. 20 - Prob. 104CPCh. 20 - Prob. 105CPCh. 20 - Prob. 106IPCh. 20 - Prob. 107IPCh. 20 - Although nitrogen trifluoride (NF3) is a thermally...Ch. 20 - While selenic acid has the formula H2SeO4 and thus...Ch. 20 - Prob. 110MPCh. 20 - Prob. 111MP
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- A solution contains 0.097 M Ce3+, 1.55x10-3 M Ce4+, 1.55x10-3 M Mn2+, 0.097 M MnO4-, and 1.00 M HClO4 (F= 9.649 x 104 C/mol). a) Write a balanced net reaction that can occur between species in this solution. b) Calculate deltaG0 and K for the reaction. c) Calculate E and deltaG for the conditions given. Ce4+ + e- = Ce3+ E0= 1.70 V MnO4- + 8H+ + 5e- = Mn2+ + 4H2O E0= 1.507 Varrow_forward1. Provide a step-by-step mechanism for formation of ALL STEREOISOMERS in the following reaction. Na HCO3 (Sodium bicarbonate, baking soda) is not soluble in CH2Cl2. The powder is a weak base used to neutralize strong acid (pKa < 0) produced by the reaction. Redraw the product to show the configuration(s) that form at C-2 and C-4. Br2 OH CH2Cl2 Na* HCO3 Br HO OH + Na Br +arrow_forward2. Specify the solvent and reagent(s) required to carry out each of the following FGI. If two reagent sets must be used for the FGI, specify the solvent and reagent(s) for each reagent set. If a reaction cannot be carried out with reagents (sets) class, write NP (not possible) in the solvent box for reagent set #1. Use the letter abbreviation for each solvent; use a number abbreviation for reagent(s). Solvents: CH2Cl2 (A); H₂O (B); Reagents: HBr (1); R₂BH (6); H2SO4 (2); CH3OH (C); Br₂ (3); CH3CO₂H (D) NaHCO3 (4); Hg(OAc)2 (5); H₂O2/HO (7); NaBH4 (8) Reagent Set #1 Reagent Set #2 FGI + enant OH Solvent Reagent(s) Solvent Reagent(s)arrow_forward
- Germanium (Ge) is a semiconductor with a bandgap of 2.2 eV. How could you dope Ge to make it a p-type semiconductor with a larger bandgap? Group of answer choices It is impossible to dope Ge and have this result in a larger bandgap. Dope the Ge with silicon (Si) Dope the Ge with gallium (Ga) Dope the Ge with phosphorus (P)arrow_forwardWhich of the following semiconductors would you choose to have photons with the longest possible wavelengths be able to promote electrons to the semiconductor's conduction band? Group of answer choices Si Ge InSb CdSarrow_forwardWhich of the following metals is the only one with all of its bands completely full? Group of answer choices K Na Ca Alarrow_forward
- 2. Specify the solvent and reagent(s) required to carry out each of the following FGI. If two reagent sets must be used for the FGI, specify the solvent and reagent(s) for each reagent set. If a reaction cannot be carried out with reagents (sets) class, write NP (not possible) in the solvent box for reagent set #1. Use the letter abbreviation for each solvent; use a number abbreviation for reagent(s). Solvents: CH2Cl2 (A); Reagents: H₂O (B); CH3CO₂H (D) NaHCO3 (4); Hg(OAc)2 (5); HBr (1); R₂BH (6); H2SO4 (2); CH3OH (C); Br₂ (3); H₂O₂ / HO- (7); NaBH4 (8) Reagent Set #1 Reagent Set #2 FGI OH - α-α Br + enant Solvent Reagent(s) Solvent Reagent(s)arrow_forwardBased on concepts from Lecture 3-5, which of the following ionic compounds should be most soluble in water? Group of answer choices MgO BeO CaO BaOarrow_forwardFrom an energy standpoint, which two process - in the correct order - are involved in the dissolving of an ionic compound crystal? Group of answer choices Water coordination to the ions followed by sublimation into the gas phase Sublimation of the crystal into gas-phase ions followed by water coordination to the ions Ion dissociation from the crystal followed by water coordination to the ions Water coordination to the ions followed by ion dissociation from the crystalarrow_forward
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