1) Triglycerides in the vegetable oil are broken down into
and
2) The breakdown of triglycerides is an example of a
3) What is formed when methanol reacts with a fatty acid
. This reaction is an example of a
4) The reaction that forms glycerol from the triglycerideis an example of a
5) An organic acid has the formula C12H21COOH. This organic acid is
6) Diesel + oxygen => carbon dioxide and water is an example of a
7) Explain why biodiesel is considered a carbon neutral fuel.
8) Which biological process traps atmospheric carbon in organic molecules
9) The process of switching an ester's alcohol fragment for another alcohol fragment is called
10) A vegetable oil was added to an aqueous solution of KOH and methanol. The mixture was heated for 40 minutes and then transfered to a separating funnel and allowed to settle. After several minutes two layers were visible.
What is the top layer composed of?
What is the bottom layer composed of?
11) Consider the video on the right. It shows two liquids a biodiesel and a vegetable oil from which the biodiesel was synthesised.
a. Identify the vegetable oil and the biodiesel.
b. Explain the difference in viscosity of each liquid with reference to the chemical structure and intermolecular bonding of each liquid.
12. Using the semistructural formulae of the fatty acids, draw the triglyceride formed from the three fatty acid chains shown below.