Fdfk

Problems 57
terahcdral ca¡bo¡ (p. 28)
trigonal planarcarbon (p. 30)
triple bond (p. 32)
ralence elcarors (p. 7)

si-sma (cr) bondiag molecular

orbitat (p.2I)
single bond (p. 29)tetrahedral bond anglc (p. 28)

( 50.rDraw a l¡wis strucure
v a. H2CO3

for each of the following species:

d.
e.

b. CO32c. H2CO
5l

.

f-

CH3NH2

8. Coz;
h. No+

CI13N2+

i.

N2H4Gve the hybridizarion of the central atom of each of ürc
Iínear. trigonal plarar, or tetrahedral:

a.
b.

¡.

d.
e.

NH3
BH3

-clf3

¡.

52. Draw tbe €ondetr§ed strucrure

o53. Predict

HCN

h.

c¡(jtri+
If;o*

c*13

+cH3

i.

oJ a compouod that contains

rwo sp3 hybndized ca¡üons

H2N0-

species, aad tell whether the bond arraagement around it isfoliowirg

*NHa

¿. three qp3 tryUriaiz.a ca¡üoas.
b. ooe sp3 hybridized carüon zadtwo.spzbybli.dized

c-

valence-sbell electron-pat repulsion
(VSEPR) modet (p. 24)
wave equation (p.4)wave funcüons {p.4)

only carboa and hydrogen atoms and tha¡ has

ca¡bo¡.s.

aú, two sphyHdiz*d ca¡boas.

the indicated bond anglcs:

f. rheH-C-H bond aagle in II2C:O
g. úeF-B-F bond aagie in3Fa
h úeC-C-Nbondangle ir CH3C=N
i. üeC-C-N botrd aaglein CH3CH2I'¡:H2

a. rhe C-N-¡1 6s¡d angle in (CH3)2NH
b. the C-N-C bond aogle ia (CH3)2NH
c. the C-N-C bnd aagie ia (CIIj2NH2
d. rbeC-O-C bond angie ia CH3OCH3
e. the C-O-H bond augle in CH3OH

'/:\^'
( 54. )Give each atom the 4oo.o-i"r. formal charge: J..a{,r.\o
ppropriate o.*al ha¡se:
\-./

,,ll

QH¡

a.

I

H:O:e. H-C-H

c. CH3-T-CH3

g. H_C_H
I

H

CH¡

b. H:o.

fiH
tl
f. H_N-B-H
lt
HH

d. H-Ñ-H

h. cH3-ó-cH3
I

H

D¡aw the grouad-state electronic configuratioa for:
Write theKekulé strucru¡e for each of the followi¡g compounds:

^
(p

a.
b.

CH3CHO

CH3OCH3

c. CH3COOH
d. (CH3)3COH

Strow the direction of tbe dipole moment

a. CH3-Br
b. cH3-Li
58. What is...