4) For the following species, indicate electron group geometry, molecular geometry, resonance structures (if possible), hybridization type and polarity by filling the following table given below: (s4Xe, 9F, 1sP, 17CI, 6C, 80) Species Electron group Molecular Polarity Hybridization type Resonance geometry geometry structure XeF4 PCI3 CO2-

4) For the following species, indicate electron group geometry, molecular geometry, resonance structures (if possible), hybridization type and polarity by filling the following table given below: (s4Xe, 9F, 1sP, 17CI, 6C, 80) Species Electron group Molecular Polarity Hybridization type Resonance geometry geometry structure XeF4 PCI3 CO2-

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter6: Covalent Bonding

Section: Chapter Questions

Problem 114QRT

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“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.
The lactic acid molecule, CH3CH1OH2COOH, gives sourmilk its unpleasant, sour taste. (a) Draw the Lewis structurefor the molecule, assuming that carbon always forms fourbonds in its stable compounds. (b) How many p and howmany s bonds are in the molecule? (c) Which CO bond isshortest in the molecule? (d) What is the hybridization ofatomic orbitals around the carbon atom associated withthat short bond? (e) What are the approximate bond anglesaround each carbon atom in the molecule?
Determine the approximate bond angles in the following ions and molecules approx. 180 аpprox. 120 No Answers Chosen No Answers Chosen approx. 109.5 аpprax, 90 No Answers Chosen No Answers Chosen mix of 120 and 9o 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)
(a) State whether or not the bonding in each substance islikely to be covalent: (i) iron, (ii) sodium chloride, (iii) water,(iv) oxygen, (v) argon. (b) A substance XY, formed from twodifferent elements, boils at -33 °C. Is XY likely to be a covalentor an ionic substance?
CI CI CFs CF, „CF3 F;C ·P. CF CF's CF `CHI, F,C CH3 F,C By considering the trans effect in trigonal bipyramidal, arrange the following in order of increasing P-CI bond length.
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The VSEPR model was developed before any xenon com-pounds had been prepared. Thus, these compounds provided anexcellent test of the model’s predictive power. What would youhave predicted for the shapes of XeF₂, XeF₄, and XeF₆?
Arrange the bonds in each of the following sets in orderof increasing polarity: (a) C¬F, O¬F, Be¬F;(b) O¬Cl, S¬Br, C¬P; (c) C¬S, B¬F, N¬O
Draw the Lewis structures for each of the following moleculesor ions. Identify instances where the octet rule is notobeyed; state which atom in each compound does not followthe octet rule; and state how many electrons surround theseatoms: (a) NO, (b) BF3, (c) ICl2-, (d) OPBr3 (the P is the centralatom), (e) XeF4.
The structure of borazine, B3N3H6, is a six-membered ringof alternating B and N atoms. There is one H atom bondedto each B and to each N atom. The molecule is planar.(a) Write a Lewis structure for borazine in which the formalcharge on every atom is zero. (b) Write a Lewis structurefor borazine in which the octet rule is satisfied forevery atom. (c) What are the formal charges on the atomsin the Lewis structure from part (b)? Given the electronegativitiesof B and N, do the formal charges seem favorableor unfavorable? (d) Do either of the Lewis structuresin parts (a) and (b) have multiple resonance structures?(e) What are the hybridizations at the B and N atoms inthe Lewis structures from parts (a) and (b)? Would you expectthe molecule to be planar for both Lewis structures?(f) The six B¬N bonds in the borazine molecule are allidentical in length at 1.44 Å. Typical values for the bondlengths of B¬N single and double bonds are 1.51 Å and1.31 A°, respectively. Does the value of the B¬N…
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