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

 1. 
About 29 million tons of aluminum is needed to meet worldwide demand each year. The primary ore mineral of aluminum is bauxite.  Bauxite consist of 45 – 60 percent of what type of aluminum compound?
a.
aluminum nitride
d.
aluminum sulfide
b.
aluminum nitrate
e.
aluminum fluoride
c.
aluminum oxide
 

 2. 
Determine the number of moles of atoms in 11.4 grams of aluminum.
a.
0.555 moles Al
d.
1.08 moles Al
b.
0.423 moles Al
e.
1.32 moles Al
c.
0.840 moles Al
 

 3. 
Which of the following is a fatty acid found in butter?
a.
oxalic
d.
acetic
b.
sulfuric
e.
phosphoric
c.
oleic
 

 4. 
Butyric acid (butanoic acid) is one of the saturated short-chain fatty acids responsible for the characteristics flavor in butter.  The chemical formula for butyric acid is CH3CH2CH2COOH.  How many atoms of hydrogen are contained in 35 molecules of butyric acid?
a.
8 atoms H
d.
16 atoms H
b.
4.82 x 1024 atoms H
e.
280 atoms H
c.
6.02 x 1023 atoms H
 

 5. 
Calculate the percentage composition of butyric acid, CH3CH2CH2COOH.
a.
12.6% C, 4.8% H, 82.6% O
d.
54.5% C, 9.1% H, 36.4% O
b.
33.3% C, 6.7% H, 40.0% O
e.
36.4% C, 9.1% H, 54.5% O
c.
60.7% C, 9.1% H, 30.2% O
 

 6. 
Ethanol is an alcohol-based alternative fuel produced by fermenting and distilling starch crops that have been converted into simple sugars.  What is another common use of ethanol?
a.
Beverage
d.
Laundry starch
b.
Laundry detergent
e.
Hair colorant
c.
Soil substitute
 

 7. 
What is the mass of 2.50 moles of CH3CH2OH.
a.
100. g CH3CH2OH
d.
115 g CH3CH2OH
b.
102 g CH3CH2OH
e.
239 g CH3CH2OH
c.
46.0 g CH3CH2OH
 

 8. 
What is rock salt?
a.
MgCl2
d.
CaCl2
b.
NaCl
e.
K2SO4
c.
MgSO4
 

 9. 
Calculate the mass of 5.689 x 1044 particles NaCl.
a.
5.854 x 1066 g NaCl
d.
3.328 x 1046 g NaCl
b.
9.450 x 1020 g NaCl
e.
1.615 x 1019 g NaCl
c.
5.528 x 1022 g NaCl
 

 10. 
During the process of extracting sugar from beets, a pulp by product is turned into pellets and commonly used for?
a.
a fuel source
d.
a food product for animals
b.
a fertilizer
e.
an insulation product
c.
a food product for people
 

 11. 
Calculate the amount of mass of 8.9 x 1024 molecules of sugar (C12H22O11)
a.
1.6 x 1046  g C12H22O11
d.
15 g C12H22O11
b.
1.8 x 1051 C12H22O11
e.
5100 g C12H22O11
c.
5.4 x 1048 g C12H22O11
 

 12. 
Which of the following is not a raw material for the production of aspirin?
a.
Phenol, C6H5-OH
d.
Hydrogen, H
b.
Nitrogen dioxide, NO2
e.
Sodium Hydroxide, NaOH
c.
Carbon Dioxide, CO2
 

 13. 
Calculate the moles contained in 545 grams of aspirin, C9H8O4.
a.
3.03 mol C9H8O4
d.
9.05 x 10-22 mol C9H8O4
b.
180. mol C9H8O4
e.
3.28 x 1026 mol C9H8O4
c.
98100 mol C9H8O4
 

 14. 
Can it be harmful to breath 100% oxygen?
a.
yes
b.
no
 

 15. 
Calculate the mass of one oxygen atom.
a.
2.557 x 10-22 g O
d.
1.330 x 10-22 g O
b.
5.333 x 10-23 g O
e.
3.764 x 10-22 g O
c.
2.657 x 10-23 g O
 




 
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