Download Organic Chemistry Practice – Part 1

Name: __________________________________
Organic Chemistry Practice – Part 1
1. What is crude oil?_______________________________________________
_______________________________________________________________
2. How is it separated? _______________________________________
3. Write the general formula for Alkanes _______________________________
4. Fill in the prefixes:
Number of
Prefix
Carbons
1
Meth-
Number of
Carbons
6
2
7
3
8
4
9
5
10
Prefix
5. Write the molecular formula for (hint: use the general formulas to help you):
a. Octane _______________________________
b. Butane________________________________
c. Pentane_______________________________
6. Write the length of the hydrocarbon chains that are generally expected to be
solid, liquid, and gas at room temperature.
7. Draw the following:
a. 2,2-dimethyl propane
b. 3-methyl pentane
c. 3-ethyl- 2-methyl-octane
d. 2-ethyl-2-propyl-decane
8. Name the following compounds:
9.
Alcohols:
- contain the functional group –OH in place of a H atom
Rules for naming alcohols:
1. choose the longest chain of carbon atoms which contain
the
–OH group
2. number the chain so that the –OH group is the smallest
number
3. Name all the side branches
4. The position of the –OH group is part of the parent chain
name
Example:
Step 1: the longest chain containing the –OH group contains five carbons
(pentanol)
Step 2: the –OH group is attached to carbon 2 on the parent chain
(pentan-2-ol)
Step 3: A methyl side branch is on carbon 3 (3-methyl)
Name:
3-methyl pentan-2-ol
Name the following alcohols and label if it is primary, secondary or tertiary.
10. What if there are two –OH alcohol groups?
- use names such as “diol” for 2 or “triol” for 3 –OH groups.
1,2-ethanediol
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11. Describe the purpose of using potassium dichromate with alcohols. Describe
the reaction.
_______________________________________________________________
_______________________________________________________________
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12. Red Sherry contains 30% alcohol. Explain the process of how the alcohol
could have been possibly made.
_______________________________________________________________
_______________________________________________________________
13. Suppose a glass of Sherry is poured to a volume of 60 mL. Calculate how
much actual alcohol (ethanol) in mL is in that glass.
14. Combustion Reactions:
a. Write the balanced combustion reaction for methanol.
b. Write the balanced combustion reaction for heptane.
c. How is incomplete combustion different to complete combustion?
15. Bromine water is often used with classifying hydrocarbons. Explain how it
works.
_______________________________________________________________
_______________________________________________________________
16. Draw the electron dot diagram for the following molecules to show all the
electrons dots that are being shared among the atoms:
a. Methane
b. propane
c. water