EBK GENERAL CHEMISTRY
11th Edition
ISBN: 9780133400588
Author: Bissonnette
Publisher: VST
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Textbook Question
Chapter 10, Problem 95E
Estimate the standard enthalpies of formation at 25 °C and 1 bar of (a)
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(a) Compare the bond enthalpies (Table 8.3) of the carbon–carbon single, double, and triple bonds to deduce an averageπ -bond contribution to the enthalpy. What fraction ofa single bond does this quantity represent? (b) Make a similarcomparison of nitrogen–nitrogen bonds. What do youobserve? (c) Write Lewis structures of N2H4, N2H2, and N2,and determine the hybridization around nitrogen in eachcase. (d) Propose a reason for the large difference in yourobservations of parts (a) and (b).
Thionyl chloride (SOCl₂) is a sulfur oxohalide used indus-trially to dehydrate metal halide hydrates. (a) Write a balancedequation for its reaction with magnesium chloride hexahydrate,in which SO₂ and HCl form along with the metal halide. (b) Drawa Lewis structure of SOCl₂ with minimal formal charges.
(e)
The mean bond enthalpy for chlorine is +242 kJ mol·l and that for fluorine is +158 kJ mol-". The
enthalpy of formation of CIF (g) is 56 kJ mol·l
(ii)
Calculate the enthalpy of formation of,
gaseous
Chlorine Trifluoride, CIF3 (g), using the
bond enthalpy value you obtained in part (i).
(iii)
The bond enthalpy of CIF3 calculated in part (ii) is likely to be different than that determined
from experiment. Explain.
Chapter 10 Solutions
EBK GENERAL CHEMISTRY
Ch. 10 - Write Lewis symbols for the following atoms. (a)...Ch. 10 - Write Lewis symbols for the following ions. (a)...Ch. 10 - Write plausible Lewis structures for the following...Ch. 10 - Each of the following molecules contains at least...Ch. 10 - By means of Lewis structures, represent bonding...Ch. 10 - Which of the following have Lewis structures that...Ch. 10 - Prob. 7ECh. 10 - Suggest reasons why the following do not exist as...Ch. 10 - Describe what is wrong with each of the following...Ch. 10 - Describe what is wrong with each of the following...
Ch. 10 - Prob. 11ECh. 10 - Indicate what is wrong with each of the following...Ch. 10 - Write Lewis structures for the following ionic...Ch. 10 - Under appropriate conditions, both hydrogen and...Ch. 10 - Derive the correct formulas for the following...Ch. 10 - Each of the following ionic compounds consists of...Ch. 10 - Assign formal charges to each of the atoms in the...Ch. 10 - Assign formal charges to each of the atoms in the...Ch. 10 - Both oxidation state and formal charge involve...Ch. 10 - Prob. 20ECh. 10 - Prob. 21ECh. 10 - Assign formal charges to the atoms in the...Ch. 10 - Prob. 23ECh. 10 - Show that the idea of minimizing the formal...Ch. 10 - Write acceptable Lewis structures for the...Ch. 10 - Two molecules that have the same formulas but...Ch. 10 - The following polyatomic anions involve covalent...Ch. 10 - Represent the following ionic compounds by Lewis...Ch. 10 - Write a plausible Lewis structure for...Ch. 10 - Prob. 30ECh. 10 - Write Lewis structures for the molecules...Ch. 10 - Write Lewis structures for the molecules...Ch. 10 - Write Lewis structures for the molecules...Ch. 10 - Write Lewis structures for the molecules...Ch. 10 - Identify the main group that the element X belongs...Ch. 10 - Prob. 36ECh. 10 - Use your knowledge of electronegativities, but do...Ch. 10 - Which of the blowing molecules would you expect to...Ch. 10 - What is the percent ionic character of each of the...Ch. 10 - Prob. 40ECh. 10 - Prob. 41ECh. 10 - Use a cross-base arrow () to represent the...Ch. 10 - Which electrostatic potential map corresponds to...Ch. 10 - Prob. 44ECh. 10 - Two electrostatic potential maps are shown, one...Ch. 10 - Prob. 46ECh. 10 - Prob. 47ECh. 10 - Which of the following species requires a...Ch. 10 - Dinitrogen oxide (nitrous oxide, or "laughing...Ch. 10 - The Lewis structure of nitric acid, HONO2, is a...Ch. 10 - Draw Lewis structures for the following species,...Ch. 10 - Draw Lewis structures for the following species,...Ch. 10 - Write plausible Lewis structures for the following...Ch. 10 - Write plausible Lewis structures for the following...Ch. 10 - Which of the following species would you expect to...Ch. 10 - Write a plausible Lewis structure for NO2 , and...Ch. 10 - In which of the following species is it necessary...Ch. 10 - Prob. 58ECh. 10 - Use VSEPR theory to predict the geometric shapes...Ch. 10 - Use VSEPR theory to predict the geometric shapes...Ch. 10 - Each of the following is either linear, angular...Ch. 10 - Predict the geometric shapes of (a) CO ; (b)...Ch. 10 - One of the following ions has a trigonal-planer...Ch. 10 - Two of the following have the same shape. Which...Ch. 10 - Prob. 65ECh. 10 - Sketch the probable geometric shape of molecule of...Ch. 10 - Use the VSEPR theory to predict the shapes of the...Ch. 10 - Use the VSEPR theory to predict the shape of (a)...Ch. 10 - The molecular shape of BF2 is planar (see Table...Ch. 10 - Explain why it is not necessary to find the Lewis...Ch. 10 - Comment on the similarities and differences in the...Ch. 10 - Comment on the similarities and differences in the...Ch. 10 - Draw a plausible Lewis structure for the following...Ch. 10 - Draw a plausible Lewis structure for the following...Ch. 10 - Sketch the propyne molecule, CH2CCH. Indicate the...Ch. 10 - Sketch the propene molecule, CH2CHCH2. Indicate...Ch. 10 - Lactic acid has the formula CH2CH(OH)COOH. Sketch...Ch. 10 - Levulinic acid has the formula CH2(CO)CH2CH2COOH....Ch. 10 - Prob. 79ECh. 10 - Prob. 80ECh. 10 - Predict the shapes of the following molecules, and...Ch. 10 - Which of the blowing molecules would you expect to...Ch. 10 - The molecule H2O2 has a resultant dipole moment of...Ch. 10 - Prob. 84ECh. 10 - Without referring to tables in the text, indicate...Ch. 10 - Estimate the lengths of the blowing bonds and...Ch. 10 - A relationship between bond lengths and...Ch. 10 - In which of the following molecules would you...Ch. 10 - Prob. 89ECh. 10 - Prob. 90ECh. 10 - A reaction involved in the formation of ozone the...Ch. 10 - Use data from Table 10.3, but without performing...Ch. 10 - Use data from Table 10.3 to estimate the enthalpy...Ch. 10 - One of the chemical reactions that occurs in the...Ch. 10 - Estimate the standard enthalpies of formation at...Ch. 10 - Prob. 96ECh. 10 - Use bond energies from Table 10.3 to estimate rH...Ch. 10 - Equations (1) end (2) can be combined to yield the...Ch. 10 - One reaction involved in the sequence of reactions...Ch. 10 - Prob. 100ECh. 10 - Given the bond-dissociation energies:...Ch. 10 - Prob. 102IAECh. 10 - Prob. 103IAECh. 10 - Prob. 104IAECh. 10 - Prob. 105IAECh. 10 - Draw Lewis structures for two different molecules...Ch. 10 - Sodium azide, NaN2 is the nitrogen gas-forming...Ch. 10 - Prob. 108IAECh. 10 - Prob. 109IAECh. 10 - A few years ago the synthesis of a salt containing...Ch. 10 - Prob. 111IAECh. 10 - In certain polar solvents, PCI, undergoes an...Ch. 10 - Prob. 113IAECh. 10 - Prob. 114IAECh. 10 - Use the VSEPR theory to predict a probable shape...Ch. 10 - The standard enthalpy of formation of...Ch. 10 - Prob. 117IAECh. 10 - Prob. 118IAECh. 10 - Prob. 119IAECh. 10 - R. S. Mulliken proposed that the electronegativity...Ch. 10 - When molten sulfur reacts with chlorine gas, a...Ch. 10 - Hydrogen azide, HN2 , can exist in two forms. One...Ch. 10 - Prob. 123IAECh. 10 - Prob. 124IAECh. 10 - Prob. 125IAECh. 10 - One of the allotropes of sulfur is a ring of eight...Ch. 10 - One of the allotropes of phosphorus consists of...Ch. 10 - In this problem, we examine the basis of three...Ch. 10 - Prob. 129FPCh. 10 - Prob. 130FPCh. 10 - Prob. 131SAECh. 10 - Briefly describe each of the following ideas: (a)...Ch. 10 - Explain the important distinctions between (a)...Ch. 10 - Prob. 134SAECh. 10 - The formal charges on the O atoms in the ion...Ch. 10 - Which molecule is nonlinear?...Ch. 10 - Which molecule is nonpolar?...Ch. 10 - The highest bond-dissociation energy is found in...Ch. 10 - The greatest bond length is found in...Ch. 10 - Draw plausible Lewis structures for the blowing...Ch. 10 - Predict the shapes of the following...Ch. 10 - Which of the following ionic compounds is composed...Ch. 10 - Which of the following molecules does not obey the...Ch. 10 - Which of the following molecules has no polar...Ch. 10 - The electron-group geometry of H2O is (a)...Ch. 10 - For each of the following compounds, give the...Ch. 10 - Use bond enthalpies from Table 10.3 to determine...Ch. 10 - Prob. 148SAECh. 10 - Prob. 149SAECh. 10 - What is the VSEPR theory? On what physical basis...Ch. 10 - Prob. 151SAECh. 10 - Prob. 152SAECh. 10 - Prob. 153SAECh. 10 - Prob. 154SAE
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