19.:O:||:0-N-O:Which of the following statements, if true, would support the claim that the NO3 ion, represented above, has threeresonance structures?(A) The NO3 ion is not a polar species.(B) The oxygen-to-nitrogen-to-oxygen bond angles are 90°.(C) One of the bonds in NO3 is longer than the other two.(D) One of the bonds in NO3¯ is shorter than the other two.

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Answered: _9. :0: || :0-N-0: Which of the…

General, Organic, and Biological Chemistry

7th Edition

ISBN:9781285853918

Author:H. Stephen Stoker

Publisher:H. Stephen Stoker

Chapter5: Chemical Bonding: The Covalent Bond Model

Section: Chapter Questions

Problem 5.108EP

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Consider the collection of nonmetallic elements O, P, Te,I, and B. (a) Which two would form the most polar singlebond? (b) Which two would form the longest single bond?(c) Which two would be likely to form a compound of formulaXY2? (d) Which combinations of elements would likelyyield a compound of empirical formula X2Y3?
A common form of elemental phosphorus is the tetrahedralP4 molecule, where all four phosphorus atoms areequivalent:At room temperature phosphorus is a solid. (a) Are there anylone pairs of electrons in the P4 molecule? (b) How manyP¬P bonds are there in the molecule? (c) Draw a Lewisstructure for a linear P4 molecule that satisfies the octet rule.Does this molecule have resonance structures? (d) On thebasis of formal charges, which is more stable, the linear moleculeor the tetrahedral molecule?
(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 common form of elemental phosphorus is the tetrahedralP4 molecule, where all four phosphorus atoms areequivalent: At room temperature phosphorus is a solid. (a) Are there anylone pairs of electrons in the P4 molecule? (b) How manyP¬P bonds are there in the molecule? (c) Draw a Lewisstructure for a linear P4 molecule that satisfies the octet rule.Does this molecule have resonance structures? (d) On thebasis of formal charges, which is more stable, the linear moleculeor the tetrahedral molecule?
Methyl isocyanate, CH3NCO, was made infamous in 1984when an accidental leakage of this compound from a storagetank in Bhopal, India, resulted in the deaths of about3800 people and severe and lasting injury to many thousandsmore. (a) Draw a Lewis structure for methyl isocyanate.(b) Draw a ball-and-stick model of the structure,including estimates of all the bond angles in the compound.(c) Predict all the bond distances in the molecule.(d) Do you predict that the molecule will have a dipolemoment? Explain.
a) Methane 1CH42 and the perchlorate ion 1ClO4- 2 are both described as tetrahedral. What does this indicate about their bond angles? (b) The NH3 molecule is trigonal pyramidal, while BF3 is trigonal planar. Which of these molecules is flat?
Which of the following statements is correct? (A) Only neutral molecules can be non-polar, all ions are polar. (B) The net dipole moment of non-polar molecules/ions is 0. (C) All linear molecules are non-polar. (D) All molecules that contains only polar bonds are polar.
Two important industrial chemicals, ethene, C2H4, and propene, C3H6, are produced by the steam (or thermal) cracking process: 2C3H8(g) ⟶ C2H4(g) + C3H6(g) + CH4(g) + H2(g) For each of the four carbon compounds, do the following: (a) Draw a Lewis structure. (b) Predict the geometry about the carbon atom. (c) Determine the hybridization of each type of carbon atom.
Draw the resonance forms that fit the octet rule for the metaphosphate ion, PO 3 – . (a) How many sigma bonds are there? How many pi bonds? (b) What is the phosphorus-oxygen bond order? (c) Arrange the following species in order of decreasing P-O bond strength (strongest first, weakest last). PO 4 3– , PO 2 – , PO + , PO 3
Draw the resonance forms that fit the octet rule for the metaphosphate ion, PO 3. (a) How many sigma bonds are there? How many pi bonds? (b) What is the phosphorus-oxygen bond order? (c) Arrange the following species in ord er of decreasing P-O bond strength (strongest first, weakest 6. 3- last). PO 4, PO2 , PO *, PO ;
Compare the electron dot structures of the carbonate</o:p> (CO32- ) and borate (BO33- ) ions.</o:p> (a) Are these ions isoelectronic?</o:p> (b) How many resonance structures does each ion have?</o:p> (c) What are the formal charges of each atom in these ions?</o:p> (d) If an H+ ion attaches to CO32- to form the bicarbonate ion, HCO3- , does it attach to an O atom or to the C atom?</o:p> </o:p>
Which statements are true about resonance contributing structures? (a) All contributing structures must have the same number of valence electrons. (b) All contributing structures must have the same arrangement of atoms. (c) All atoms in a contributing structure must have complete valence shells. (d) All bond angles in sets of contributing structures must be the same.

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