Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN: 9781938168390
Author: Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher: OpenStax
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Textbook Question
Chapter 7, Problem 60E
Iodine forms a series of fluorides (listed here). Write Lewis structures for each of the four compounds and determine the formal charge of the iodine atom in each molecule:
(a) IF
(b)
(c)
(d)
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Cyanogen (CN)2 is known as pseodohalogen because it has some properties like halogens. It is composed of two CN’s joined together.(i) Draw the Lewis structure for all the possible combination for (CN)2.(ii) Calculate the formal charge and determine which one of the structures that you have drawn is most stable.(iii) For the stable structure, determine the geometry around the two central atoms.(iv) For the stable structure, draw the dipole arrows for the bonds.(v) Base on the stable structure, determine the polarity of molecule and state your reason.
Draw the Lewis structures for each of the following ions or molecules. Give the number of electrons in each species. Remember to enclose ion s in square brackets with the charge as a superscript outside the right bracket.
(a) SO 2 (b) XeO 2 F 2 (Xe is the central atom) (c) ClF 3 (d) ClO 2 F (Cl is the central atom) (e) BrO 4 -
(a) The 03 molecule has a central oxygen atom bonded to two outer oxygen atoms that are
another. In the box below, draw the Lewis electron-dot diagram of the 03 molecule. Include all valid
resonance structures.
0 - 0 = 0
(b) Based on the diagram you drew in part (a), what is the shape of the ozone molecule?
and
trigonal
Bent
Ozone decomposes according to the reaction represented below.
2 03(g) → 3 0₂(8)
(c) The bond enthalpy of the oxygen-oxygen bond in O₂ is 498 kJ/mol. Based on the enthalpy of the reaction
represented above, what is the average bond enthalpy, in kJ/mol, of an oxygen-oxygen bond in 03 ?
Ozone can oxidize HSO3(aq), as represented by the equation below.
[0]
1.0 x 10-5.
<-> 00:
HSO3(aq) + O3(aq) → HSO4 (aq) + O₂(8)
A solution is prepared in which the initial concentration of HSO₂ (aq) (6.4 × 10+ M) is much larger than that
of O3(aq) (1.0 × 10-5 M). The concentration of O3(aq) is monitored as the reaction proceeds, and the data
are plotted in the graph below.
8.0 x…
Chapter 7 Solutions
Chemistry by OpenStax (2015-05-04)
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