Download Exam 3 SI Review Session 10/18/2011 Chapter 16: 1

Exam 3 SI Review Session
10/18/2011
Chapter 16:
1. Explain the differences in the condensed structural formulas of propanal and propanoic acid.
2. Draw the condensed structural formula of each of the following carboxylic acids:
a. Propionic acid
b. 2-chloroethanoic acid
c. Alpha-methylbutyric acid
d. 3,5-dibromoheptanoic acid
e. 3-ethylbenzoic acid
3. Because carboxylic acids are weak acids, they are completely neutralized by strong bases such as
NaOH and KOH. The products are __________ and _______________>
4. Give the product in condensed structural formula of the flowing neutralization reaction of the
following carboxylic acid and strong base:
a. Methanoic Acid and Sodium Hydroxide
b. Propanoic Acid and Sodium Hydroxide
c. Acetic Acid and KOH
5. Identify the compound in each of the following pairs that has the higher boiling point. Explain.
a. Propanone or Propanoic acid
b. Propanoic acid or Hexanoic acid
c. Ethanol or Ethanoic acid
6. General Review: Give the condensed structural formula for the following types of molecules
using four carbons (it does not matter what carbons the branches come off of except for
aldehydes and ketones)
a. Alkane
b. Alkene
c. Ether
d. Alcohol
e. Aldehyde
f. Ketone
g. Carboxylic Acid
h. Ester
7. Draw the condensed structural formula of the ester formed when each of the following react:
a. Propionic acid and 1-Propanol
b. Pentanoic acid and 2-Propanol
8. Draw the condensed structural formula of each of the following esters:
a. Butyl formate
b. Ethyl pentanoate
c. 2-bromopropyl propanoate
d. Propyl propionate
9. When an ester undergoes hydrolysis with a strong base such as NaOH or KOH, the products are
the __________ and corresponding ______________. This is also called _______________>
10. Give the products of the following Base Hydrolysis of Esters:
a. Methyl propanoate and NaOH
b. Ethyl Butanoate and H2O
Chapter 17:
1. __________ are a family of biomolecules that have the common property of being soluble in
organic solvents but not in water.
2. A _____________ contains only single carbon-carbon bonds, which makes the properties of a
long chain fatty acid similar to those of an alkane.
3. In a ____________, (type of fatty acid) the long carbon chain has one double. In a
____________ there is at least two carbon-carbon double bonds.
4. In unsaturated fatty acids, the cis double bonds cause the carbon chain to bend or kink and
forms and irregular shape. As a result, fewer interactions occur causing a __________boiling
point than saturated fatty acids.
5. A _____________ is an ester of a saturated fatty acid and a long chain alcohol, containing 14-30
carbons.
6. A __________ is a triaglycerol at room temperature and a ___________is a triaglycerol at room
temperature and is obtained from _________sources.
7. In the ____________ of an unsaturated fatty acid hydrogen is added to carbon-carbon double
bonds to form carbon-carbon single bonds.
8. When a fat is heated with a strong base such as NaOH, saponification (base hydrolysis) of that
fat gives ________ and the ______________ of the fatty acids, which are ___________.
9. The ____________________ are a family of lipids similar to triacyglycerols except that one
hydroxyl group of glycerol is replaced by the ester of phosphoric acid and an amino alcohol.
10. Draw the structure of a glycerophosphlipid containing two molecules of palmitic acid((CH2)14CH3) and ethanolamine (CH2-CH2-NH3)
11. Draw the structure of a glycerophospholipid that contain two molecules of stearic acid ((CH2)16CH3) and ethanolamine:
12. What types of lipids are found in cell membranes and what is the function of the lipid bilayer in
a cell membrane. What are some ways that substances move in and out of a cell. Explain.