EBK CHEMISTRY:CENTRAL SCIENCE
14th Edition
ISBN: 9780134554570
Author: Brown
Publisher: PEARSON
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Textbook Question
Chapter 9, Problem 81E
Determine the electron configurations for CN+, CN, and CN-
a Which species has the strongest C-N bond?
b. Which species, if any, has unpaired electrons?
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Students have asked these similar questions
a. Use bond energy values to estimate AH for the
following reaction.
CEN
ΔΗ =
C - N
H - H
C-H
N - H
ΔΗ =
b. Use bond energy values to estimate AH for the
following reaction.
H-F
N - H
H-C=N (g) + 2 H₂(g):
NEN
(891 kJ/mol)
(305 kJ/mol)
(432 kJ/mol)
(413 kJ/mol)
(391 kJ/mol)
N - N (160. kJ/mol)
(565 kJ/mol)
(391 kJ/mol)
(941 kJ/mol)
(154 kJ/mol)
F-F
kJ
H-
kJ
H
C-
H
H
-N(g)
H
H
(g) +2F2(g) → N=N(g) + 4HF(g)
H
1. Mark the following statements (A-E) as true or false
A. The halogen bond dissociation energy decreases in the row Cl2 Br2 I2 because of repulsion between the electrons in the lower shells.
B. The melting points of the dihalogens increase down the group because the interactions between the dihalogen molecules get stronger
C. The electronegativity of the halogens decreases down the group because of the decrease of the electron affinity and the increase of the ionization energy.
D. The unusually low bond dissociation energy of the F2 molecule is a direct result of the high electronegativity of fluorine
E. The high reactivity of fluorine is in part due to the low bond dissociation energy of the F2 molecule
Draw Lewis structures and assign formal charges for the following compounds and ions.
Note any resonance forms and explain which resonance form is the most important.
Make a note of any other unusual features (such as "this one doesn't work" and why-
what are the shortcomings of the model.)
CO3²-
CO
NO₂
CNO (include isomers)
Al₂Cl6
B₂H6
O2 (paramagnetic)
H3O+
LiF
IF7
Chapter 9 Solutions
EBK CHEMISTRY:CENTRAL SCIENCE
Ch. 9.2 - Consider the following AB3 molecules and ions-...Ch. 9.2 - Prob. 9.1.2PECh. 9.2 - Prob. 9.2.1PECh. 9.2 - Prob. 9.2.2PECh. 9.2 - Prob. 9.3.1PECh. 9.2 - Prob. 9.3.2PECh. 9.3 - Prob. 9.4.1PECh. 9.3 - Determine whether the following molecules are...Ch. 9.5 - Prob. 9.5.1PECh. 9.5 - Prob. 9.5.2PE
Ch. 9.6 - Prob. 9.6.1PECh. 9.6 - Prob. 9.6.2PECh. 9.6 - Prob. 9.7.1PECh. 9.6 - Prob. 9.7.2PECh. 9.7 - Prob. 9.8.1PECh. 9.7 - Prob. 9.8.2PECh. 9.8 - Prob. 9.9.1PECh. 9.8 - Prob. 9.9.2PECh. 9 - Prob. 1DECh. 9 - 9.1 A certain AB4, molecule has a "seesaw" shape...Ch. 9 - Prob. 2ECh. 9 - Prob. 3ECh. 9 - Prob. 4ECh. 9 - Prob. 5ECh. 9 - Prob. 6ECh. 9 - In the hydrocarbon a. What is the hybridization at...Ch. 9 - The drawing below shows the overlap of two hybrid...Ch. 9 - Prob. 9ECh. 9 -
9.10 The following is part of a molecular...Ch. 9 - Prob. 11ECh. 9 - Prob. 12ECh. 9 -
9.13
a. An AB2 molecule is linear. How...Ch. 9 - a. Methane (CH4) and the perchlorate ion (C104-)...Ch. 9 - Prob. 15ECh. 9 - Prob. 16ECh. 9 - Prob. 17ECh. 9 - Prob. 18ECh. 9 - In which of these molecules or ions does the...Ch. 9 - Prob. 20ECh. 9 - How many nonbonding electron pairs are there in...Ch. 9 - Prob. 22ECh. 9 - Prob. 23ECh. 9 - Prob. 24ECh. 9 - Give the electron-domain and molecular geometries...Ch. 9 - Prob. 26ECh. 9 - Prob. 27ECh. 9 - Prob. 28ECh. 9 - Prob. 29ECh. 9 - Prob. 30ECh. 9 - Ammonia, NH3 reacts with incredibly strong bases...Ch. 9 - In which of the following AFn molecules or ions is...Ch. 9 - a. Explain why BrF4 is square planar, whereas...Ch. 9 -
9.34 Name the proper three-dimensional molecule...Ch. 9 - Prob. 35ECh. 9 - Prob. 36ECh. 9 - Prob. 37ECh. 9 - Prob. 38ECh. 9 - a. (a) Is the molecule BF3 polar or nonpolar? b....Ch. 9 - Prob. 40ECh. 9 - Predict whether each of the following molecules is...Ch. 9 - Prob. 42ECh. 9 - Prob. 43ECh. 9 - Prob. 44ECh. 9 - For each statement, irldicate whether it is true...Ch. 9 - Draw sketches illustrating the overlap between the...Ch. 9 - For each statement, indicate whether it is true or...Ch. 9 - Prob. 48ECh. 9 - Prob. 49ECh. 9 - Consider the SC12 molecule. a. What IS the...Ch. 9 - Indicate the hybridization of the central atom in...Ch. 9 - Prob. 52ECh. 9 - Prob. 53ECh. 9 - Prob. 54ECh. 9 - Prob. 55ECh. 9 - Prob. 56ECh. 9 - a. Draw Lewis structures for ethane (C2He),...Ch. 9 - a. Draw Lewis structures for ethane (C2He),...Ch. 9 - Prob. 59ECh. 9 - Ethyl acetate. C4H802, is a fragrant substance...Ch. 9 - Prob. 61ECh. 9 - Prob. 62ECh. 9 - Prob. 63ECh. 9 - Prob. 64ECh. 9 - In the formate ion, HC02- , the carbon atom is the...Ch. 9 - Prob. 66ECh. 9 - Prob. 67ECh. 9 - Prob. 68ECh. 9 - Prob. 69ECh. 9 - a. If you combine two atomic orbitals on two...Ch. 9 - Prob. 71ECh. 9 - Prob. 72ECh. 9 - Prob. 73ECh. 9 - Indicate whether each statement is true or false....Ch. 9 - Prob. 75ECh. 9 - Prob. 76ECh. 9 - Prob. 77ECh. 9 - Prob. 78ECh. 9 - Prob. 79ECh. 9 - Prob. 80ECh. 9 - Determine the electron configurations for CN+, CN,...Ch. 9 - Prob. 82ECh. 9 - Consider the molecular orbitals of the P2...Ch. 9 - The iodine bromide molecule, IBr, is an...Ch. 9 - Prob. 85AECh. 9 - Prob. 86AECh. 9 - Consider the following XF4 ions: PF4, BrF4-,...Ch. 9 -
9.88 Consider the molecule PF4Cl....Ch. 9 - Prob. 89AECh. 9 - Fill in the blank spaces in the following chart....Ch. 9 - Prob. 91AECh. 9 - Prob. 92AECh. 9 - Prob. 93AECh. 9 - Prob. 94AECh. 9 - Prob. 95AECh. 9 - Prob. 96AECh. 9 - Prob. 97AECh. 9 - Prob. 98AECh. 9 - Prob. 99AECh. 9 - Prob. 100AECh. 9 - In ozone, 03, the two oxygen atoms on the ends Of...Ch. 9 - Butadiene, C4H6, is a planar molecule that has the...Ch. 9 - The structure of borazine, B3N3H6, is a...Ch. 9 - Prob. 104AECh. 9 - Prob. 105AECh. 9 - Prob. 106AECh. 9 - Prob. 107AECh. 9 - Prob. 108AECh. 9 - Azo dyes are organic dyes that are used for many...Ch. 9 - a. Using only the valence atomic orbitals of a...Ch. 9 - Carbon monoxide, CO, is isoelectronic to N2. a....Ch. 9 - The energy-level diagram in Figure 9.36 shows that...Ch. 9 - A compound composed of 2.1 29.8%N, and 68.1%O has...Ch. 9 -
9.114 Sulfur tetrafluoride (SR4) reacts slowly...Ch. 9 - Prob. 115IECh. 9 - The molecule 2-butene, C4Hs, can undergo a...Ch. 9 - Prob. 117IECh. 9 - Use average bond enthalpies (Table 8.3 ) to...Ch. 9 - Prob. 119IECh. 9 - Prob. 120IECh. 9 - Prob. 121IECh. 9 - Prob. 122IE
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- 11. Compare the bond energies of C-C, C=C, and C=C_Which one takes more energy to break the bonds and WHY?arrow_forward5. Use bond energies to estimate AH for the following reaction: CO2 + 2 NH3 ---→ H2NCONH2 + H20 (see the board for the Lewis formulas) Bond Energy kJ/mol Bond Energy kJ/mol 745 / 799 in CO2 Bond C=0 C--N 305 N--H 391 0--H 467 O=C=0 2 H -N-H `N-C=0 H-0-Harrow_forward2. Use the table below to estimate AH for the reaction NO + O3 → NO2 + O2. Does this reaction consume or produce heat? Single Bond Energies (kJ/mol of bonds) н сN oS F C Br I Н 436 C 413 346 N 391 305 163 O 463 358 201 146 S 347 272 226 - F 565 485 283 190 284 155 Cl 432 339 192 218 255 253 242 Br 366 285 201 217 249 216 193 - I 299 213 201 278 208 175 151 - - Multiple Bond Energies (kJ/mol of bonds) C=C 602 C=N 615 C=O 799 C=C 835 CEN 887 C=O 1072 N=N 418 N=O 607 N=N 945 O=O 498arrow_forward
- Calculate the enthalpy change for the reaction shown below between ammonia and phosgene to produce urea and HCI. Use the bond-dissociation energies listed in the table. Bond H-CI H-N C-CI C-N CI + 2 NH3 AHBDE (kJ/mol) 432 339 397 748 AHrxn = +444 kJ/mol AHrxn= -888 kJ/mol AHrxn= -444 kJ/mol AHrxn= +888 kJ/mol .C. HẠN-“NH, * 2 H-CIarrow_forwardHelp with question 3b please. Photo attched below. Thank youarrow_forward28. Estimate the enthalpy (change in energy) of reaction for 2 SO(g) + O2(g) →2 SO2(g) using bond energies. Assume that sulfur in SO2 (g) has an expanded octet. -> Bond Energy (kJ/mol) 498 265 a. 498 kJ/mol c. -498 kJ/mol bь. 731 kJ/mol d. -32KJ/molarrow_forward
- The conversion of graphite into diamond is an endothermic reaction (AH = +3 kJ mol-1). C(graphite) → C(diamond) 1 The enthalpy change of atomisation of diamond is smaller than that of graphite. The bond energy of the C-C bonds in graphite is greater than that in diamond. 2 The enthalpy change of combustion of diamond is greater than that of graphite. 3 Which statements are correct? A 1, 2 and 3 B 1 and 2 only C 2 and 3 only D 1 onlyarrow_forwardPCl3(g) + Cl2 (g) --><-- PCl5(g) A. Use a bond energy to find deltaHo for the reaction. Cl - Cl, 339 kJ/mole; P - Cl, 289 kJ/mole. B. Calculate the value of deltaSo for the reaction. So(PCl5) = 364.2 J/mol * K; So(PCl3) = 311.6 J/mol * K; So(Cl2) = 165.2 J/mol * K.arrow_forwardWhich of these molecules and ions contain polar bonds? Which of these molecules and ions have dipole moments? (a) H3O (b) PCl4 (c) SnCl3 (d) BrCl4 (e) ICI3 (f) XeF4 (g) SF2arrow_forward
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