1
This printout should have 33 questions.
Multiplechoice questions may continue on
the next column or page – fnd all choices
beFore answering.
The due time is Central
time.
001
(part 1 oF 1) 10 points
Divers know that the pressure exerted by
the water increases about 100kPa with every
10.2m oF depth. This means that at 10.2m
below the surFace, the pressure is 201kPa;
at 20.4m below the surFace, the pressure is
301kPa; and so Forth.
IF the volume oF a
balloon is 2
.
4 L at STP and the temperature
oF the water remains the same, what is the
volume 38
.
08 m below the water’s surFace?
Answer in units oF L.
002
(part 1 oF 1) 10 points
A gas is enclosed in a 10.0 L tank at 1200
mm Hg pressure.
Which oF the Following is
a reasonable value For the pressure when the
gas is pumped into a 5.00 L vessel?
1.
0.042 mm Hg
2.
600 mm Hg
3.
2400 mm Hg
4.
24 mm Hg
003
(part 1 oF 1) 10 points
At standard temperature, a gas has a volume
oF 246 mL. The temperature is then increased
to 118
◦
C, and the pressure is held constant.
What is the new volume? Answer in units oF
mL.
004
(part 1 oF 1) 10 points
A sample oF gas in a closed container at a
temperature oF 97
◦
C and a pressure oF 9 atm
is heated to 378
◦
C. What pressure does the
gas exert at the higher temperature? Answer
in units oF atm.
005
(part 1 oF 1) 10 points
A gas at 1
.
81
×
10
6
Pa and 18
◦
C occu
pies a volume oF 356 cm
3
.
At what tem
perature would the gas occupy 531 cm
3
at
3
.
18
×
10
6
Pa? Answer in units oF
◦
C.
006
(part 1 oF 1) 10 points
A sample oF ideal gas occupies 250 mL at 25
◦
C
and 740 torr.
What is its volume at STP?
1.
235 mL
2.
250 mL
3.
223 mL
4.
266 mL
5.
280 mL
007
(part 1 oF 1) 10 points
What is the percent yield iF 4.51 moles oF CH
4
produces 16 L oF CO
2
at STP?
CH
4
+ 2O
2
→
CO
2
+ 2H
2
O
1.
1.26%
2.
15.8%
3.
36.4%
4.
6.31%
5.
78.1%
008
(part 1 oF 1) 10 points
IF I have 44.8 liters oF nitrogen gas at standard
temperature and pressure, how much will it
weigh?
1.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
This is the end of the preview.
Sign up
to
access the rest of the document.
 Spring '07
 Fakhreddine/Lyon
 GUERRA

Click to edit the document details