SCCCChemistry:fntermoleculorForcesProcticeProblems
l. Considerthe followins six choicesbelow:
A. ionic bond
B. polar covalentbond
C. nonpolarcovalentbond
D. dispersion(London) forces
E. dipole-dipoleforces
F. hydrogenbond
G. metallic bond
H. ion-dipoleforces
Give the letter(s) for the type of bond or intermolecular force describedfor each of the following:
f
i.
Whatholdstwo 12molecules
in a sampleof rz(s)?
together
kb
V
ii.
whatholds
aroms
together
inHF?
0
iii.
Whatholdsatomstogether
molegule?
in atrydrogen
A
'
'HiU
^t'-'(.F-F
iv. whar
holds
atoms
tog"tr,.,
#tlryryh{ttwt'o
a ,-,fr"(t^
F-F
t
v.
Whatholdstwo fluorinemoleculestogetherin a sampleof liquid flirorine?
vi.
toeethgrin a sampleof liquidNHr?
Whatholdstwo ammoniamolecules
Ulf
"(.
*,
@rrl*
/
',""ffi,f,{rr[n
(il-*
il:,::::;.::":,":.:
+ ;,,;
W
viii. Whatbondsmustbebrokentomelt
Xtzdl'9Z /U
14
ix.
-*f-D
*5*
f' \*
ff
ie,ni,(, l.t'
\,t
rr
Dry ice is COz($.Because
dry ice doesnot existasa liquid undernormal
conditions,it sublimeswhenheated.Whatbondsarebrokenwhendry ice sublimes?
l . / - v / 0 - n v
O*Cfl",^,04*0
molecules
for thefollowingsamples:
n2. Circletheallof theint.r*o1"tf;ffiffi.s\that "xistbetween
wrptw
1[
f
h
tV-*
(
l.
r'f
a. *:,:f'
ti
|
|
Uff'f
r'
r
@
b. m6thahe:
\
,
c. cHzo:
CHzO:
dipole-dipoteforces
=---
+glfl€uond,.i
----
,--:--=: forces
(London
)
--*-*.-z
ffi,
dipole-dipoleforces
hydrogenbonds
/
hydrogenbonds
ffi
sy'
c[
hydrogenbonds
^:
.)
water, CHzO, methane,COz
F
lo
It
U,Tq
lowestb.p.
Cov
ol+to
t't