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CHEM 1211 Module Two Multiple Choice Makeup 5 points

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 

The density of liquid mercury is 13.5 g/cm3. What mass of mercury is required to fill a 2.00 L container?
a.
6.75 ´ 10-3 g
b.
1.48 ´ 10-2 g
c.
6.75 g
d.
1.48 ´ 102 g
e.
2.70 ´ 104 g
 

 2. 

The boiling point of liquid helium is -269°C. What is this temperature in kelvin?
a.
1.01 K
b.
4 K
c.
77 K
d.
269 K
e.
542 K
 

 3. 

What is a correct method for converting Celsius to Kelvin?
a.
t(K) = 11m2retest_files/i0040000.jpg (t°C - 273.15°C)
b.
t(K) = 11m2retest_files/i0040001.jpg (t°C - 273.15°C)
c.
t(K) = 11m2retest_files/i0040002.jpg (t°C - 273.15°C)
d.
t(K) = 11m2retest_files/i0040003.jpg (t°C - 273.15°C)
e.
none of the above
 

 4. 

A common wavelength of light emitted from a red laser pointer is 6.50 ´ 102 nm. What is the wavelength in meters?
a.
6.50 ´ 10-9 m
b.
6.50 ´ 10-7 m
c.
6.50 ´ 10-5 m
d.
6.50 ´ 10-3 m
e.
6.50 ´ 100 m
 

 5. 

If the fuel efficiency of an automobile is 22 miles per gallon, what is its fuel efficiency in kilometers per liter? (1 km = 0.621 mile, 1.000 L = 1.057 quarts, 4 quarts = 1 gallon)
a.
3.2 km/L
b.
3.6 km/L
c.
9.4 km/L
d.
32 km/L
e.
52 km/L
 

 6. 

A gallon (3.78 L) of latex paint can cover 385 ft2 of the surface of a wall. What is the average thickness of one coat of paint (in micrometers)?
a.
0.781 mm
b.
1.42 mm
c.
14.2 mm
d.
36.7 mm
e.
106 mm
 

 7. 

Silver iodide (AgCl) is relatively insoluble in water. At 25 _C, only 214 mg (micrograms) will dissolve in 1.0 liter of water. How many liters of water are needed to dissolve 5.0 g of silver iodide?
a.
4.3 ´ 100 L
b.
2.1 ´ 102 L
c.
4.3 ´ 102 L
d.
1.1 ´ 103 L
e.
2.3 ´ 104 L
 

 8. 

Express 5.00 ´ 10-2 m in standard notation using the correct number of significant figures.
a.
0.05 cm
b.
50 mm
c.
50.0 mm
d.
500 m
e.
500. m
 

 9. 

What is the correct answer to the following expression: 3.33 ´ 10-5 + 8.13 ´ 10-7?
a.
3 x 10-5
b.
3.4 ´ 10-5
c.
3.41 ´ 10-5
d.
3.411 ´ 10-5
e.
3.4113 ´ 10-5
 

 10. 

Express 0.05620 in exponential notation.
a.
5.6 ´ 10-2
b.
5.62 ´ 10-2
c.
5.620 ´ 10-2
d.
5.6 ´ 102
e.
5.62 ´ 102
 

Numeric Response
 

 11. 

Enter your score on the Module Two multiple choice, so that your improvement may be measured and your M-2 test score may be adjusted:

 



 
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