Determine the approximate bond angles in the following ions and moleculesapprox. 180аpprox. 120No Answers ChosenNo Answers Chosenapprox. 109.5аpprax, 90No Answers ChosenNo Answers Chosenmix of 120 and 9oNo Answers ChosenPossible answers| (SCNJ- (C: central atom)I (NO3)- (N: central atom)I (PO3]3- (P: central atom)I SF4 (S: central atom)

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Determine the approximate bond angles in the following ions and molecules approx. 180 аpprox. 120 No Answers Chosen No Answers Chosen approx. 109.5 аpprox. 90 No Answers Chosen No Answers Chosen mix of 120 and 90 No Answers Chosen Possible answers | (SCNJ- (C: central atom) I (NO3]- (N: central atom) I (PO3]3- (P: central atom) I SF4 (S: central atom)

Determine the approximate bond angles in the following ions and molecules approx. 180 аpprox. 120 No Answers Chosen No Answers Chosen approx. 109.5 аpprox. 90 No Answers Chosen No Answers Chosen mix of 120 and 90 No Answers Chosen Possible answers | (SCNJ- (C: central atom) I (NO3]- (N: central atom) I (PO3]3- (P: central atom) I SF4 (S: central atom)

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter8: Bonding: General Concepts

Section: Chapter Questions

Problem 110E: Predict die molecular structure and bond angles for each molecule or ion in Exercises 88 and 94. a....

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Predict die molecular structure and bond angles for each molecule or ion in Exercises 88 and 94. a. POCl3, SO42, XeO4, PO43, ClO4 b. NF3, SO32, PO33, ClO3 c.ClO2, SCl2, PCl2 d. Considering your answers to parts a, b, and c. what conclusions can you draw concerning the structures of species containing the same number of atoms and the same number of valence electrons? (O3), sulfur dioxide, and sulfur trioxide.
In each of the following molecules, a central atom is surrounded by a total of three atoms or unshared electron pairs: SnCl2, BCl3, SO2. In which of these molecules would you expect the bond angle to be less than 120? Explain your reasoning.
(a) True or false: The hydrogen atom is most stable when ithas a full octet of electrons. (b) How many electrons must asulfur atom gain to achieve an octet in its valence shell? (c) Ifan atom has the electron configuration 1s22s22p3, how manyelectrons must it gain to achieve an octet?
(a) Describe the molecule xenon trioxide, XeO3, usingfour possible Lewis structures, one each with zero, one,two, or three Xe¬O double bonds. (b) Do any of theseresonance structures satisfy the octet rule for every atomin the molecule? (c) Do any of the four Lewis structureshave multiple resonance structures? If so, how many resonancestructures do you find? (d) Which of the Lewisstructures in part (a) yields the most favorable formalcharges for the molecule?
Some chemists believe that satisfaction of the octet ruleshould be the top criterion for choosing the dominant Lewisstructure of a molecule or ion. Other chemists believe thatachieving the best formal charges should be the top criterion.Consider the dihydrogen phosphate ion, H2PO4-, inwhich the H atoms are bonded to O atoms. (a) What is thepredicted dominant Lewis structure if satisfying the octetrule is the top criterion? (b) What is the predicted dominantLewis structure if achieving the best formal charges is the topcriterion?
Consider the molecule PF4Cl. (a) Draw a Lewis structure forthe molecule, and predict its electron-domain geometry.(b) Which would you expect to take up more space, a P¬Fbond or a P¬Cl bond? Explain. (c) Predict the molecular geometryof PF4Cl. How did your answer for part (b) influenceyour answer here in part (c)? (d) Would you expect the moleculeto distort from its ideal electron-domain geometry? Ifso, how would it distort?
2. What is the formal charge on the phosphorus (P) atom in PCl4+? 3. How do the P-Ci single bond lengths in PCl5, PCl4+, and PCl6- generally compare? 4. Identify the type of bonding the central atom undergoes in PCl5 and PCl6-.
Draw Lewis diagrams for the following compounds. In theformula the symbol of the central atom is given first.(Hint: The valence octet may be expanded for the centralatom.)(a) PF5 (b) SF4 (c) XeO2F2
Which of the following is the correct setup and answer for the formal charge of sulfur in SH2?
Given the following molecules and/or ions, characterize them according to the formatshown in the table below. The central atom of the molecule/ion is shown in boldface.The central atom or molecules marked with an asterisk (*) do not obey the octet rule. PCl5* OF2 SF4* A=Bonding electronsB= Sigma-bondsC =Nonbonding electron pairsD= Hybrid orbitals havingnonbonding electron pairsE =Hybrid orbitals usedF= 3-D structure (NAME)G =Polar (P) or nonpolar (NP) MOLECULE OR ION LEWIS STRUCTURE A B C D E F G
Sulfur tetrafluoride (SF4) reacts slowly with O2 to form sulfurtetrafluoride monoxide (OSF4) according to the followingunbalanced reaction: SF4(g) + O2(g)---->OSF4(g)The O atom and the four F atoms in OSF4 are bonded to acentral S atom. (a) Balance the equation. (b) Write a Lewisstructure of OSF4 in which the formal charges of all atomsare zero. (c) Use average bond enthalpies (Table 8.3) to estimatethe enthalpy of the reaction. Is it endothermic or exothermic?(d) Determine the electron-domain geometry ofOSF4, and write two possible molecular geometries for themolecule based on this electron-domain geometry. (e) Foreach of the molecules you drew in part (d), state how manyfluorines are equatorial and how many are axial.
“Inert” xenon actually forms several compounds, especially with the highly electronegative elements oxygen and fluorine.The simple fluorides XeF₂, XeF₄, and XeF₆ are all formed by di-rect reaction of the elements. As you might expect from the sizeof the xenon atom, the Xe-F bond is not a strong one. Calcu-late the Xe-F bond energy in XeF₆, given that the heat of for-mation is 402 kJ/mol.