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Chapter 1: Q55P (page 2)

Draw a Lewis structure for each of the following:

a. CH3NH2

b. HNO3

c. NaNH2

d. NH2O-

Short Answer

Expert verified

a. NH3NH2

=4+3+5+2=14


b. HNO3

=1+5+12=18


c. NaNH2

=1+5+2=8


d. NH2O-

=5+2+6+1=14

Step by step solution

01

Determine the total number of valence electrons.

a. NH3NH2

=4+3+5+2=14


b. HNO3

=1+5+12=18


c. NaNH2

=1+5+2=8


d. NH2O-

=5+2+6+1=14

02

Distribute the atoms, form bonds and fill in their octets

Use the number of valence electrons determined in step1 to fill up the octet.

a.NH3NH2


b.HNO3


c. NaNH2




d. NH2O-


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Most popular questions from this chapter

Explain why ฯƒ bond formed by overlap of s-orbital with SP3orbital of carbon is stronger than abond formed by the overlap of an s orbital with a p orbital of carbon.

A tertiary amine reacts with hydrogen peroxide to form a tertiary amine oxide.

Tertiary amine oxides undergo a reaction similar to the Hofmann elimination reaction (Section 10.10), called a Cope elimination. In this reaction, a tertiary amine oxide, rather than a quaternary ammonium ion, undergoes elimination. A strong base is not needed for a Cope elimination because the amine oxide acts as its own base.

Does the Cope elimination have an alkene-like transition state or a carbanion-like transition state?

Predict the approximate bond angles for

  1. The C-N-C bond angle in(CH3)2 NH2+.
  2. The C-N-H bond angle in CH3CH2NH2.
  3. The H-C-N bond angle in(CH3)2NH.
  4. The H-C-O bond angle in CH3OCH3.

Rank the bonds from the most polar to least polar.

a. C - O,C - F,C - N

b. C - Cl > C - Br > C - I

c. H - O,H - N,H - C

d. C - H,C - C,C - N

a. Draw two Lewis structures for C2H6O.

b. Draw three Lewis structures for C3H8O.

(Hint:The two Lewis structures in part a are constitutional isomersโ€”molecules that have the same atoms but differ in the way the atoms are connected. The three Lewis structures in part b are also

constitutional isomers.)
See all solutions

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