ATAR Notes: Forum
VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Chemistry => Topic started by: Tonychet2 on June 07, 2012, 04:51:01 pm
-
Unsaturated fats are reacted with hydrogen gas using a metal catalyst to produce saturated fats. To produce a
saturated fat, 7.50 g of hydrogen gas was reacted with 1.25 mol of unsaturated fat.
Assuming the unsaturated fat is a triglyceride containing only one type of fatty acid, which of the following
fatty acids was the constituent of the unsaturated fat?
A. linoleic acid
B. arachidonic acid
C. linolenic acid
D. palmitoleic acid
shouldnt the answer be C?
n(H2) = 3.75
= 3:1 ratio so 3 c=c double bonds? = linolenic?
ahhhhhhhhh nevermind just realised the answer
there is 3 c=c double bonds in the whole molecule so each fatty acid only has 1 c=c therefore the answer is D