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Stearolic acid (C18H32O2), a fatty acid, yields stearic acid (18:0) when subjected to catalytic hydrogenation, and undergoes oxidative cleavage with ozone to yield nonanoic acid and nonanedioic acid. What is the structure of stearolic acid?
Structure of stearolic acid (C18H32O2) :
Degree of unsaturation of stearolic acid = (2C+2 -H)/2
= (2 x 18 + 2 - 32)/2
Among 3 degrees of unsaturation, one arises from the carboxylic acid group. Other two could be either due to two double bonds or one triple bond or two rings or 1 double bond and a ring.
Ozonation of the stearolic acid gives two carboxylic acids. The name of the products of ozonation suggest that the products has 9 carbon atoms in their structures. This is only possible if the compound has a triple bond in its structure.
Catalytic hydrogenation of triple bond gives single bond and stearolic acid converts to stearic acid.
Stearolic acid (C18H32O2), a fatty acid, yields stearic acid (18:0) when subjected to catalytic hydrogenation, and...
Catalytic hydrogenation, used in the food industry, converts double bonds in the fatty acids of vegetable oil triacylglycerols to -CH2-CH2-. Identify statements that correctly describe characteristics of catalytically hydrogenated food oils. □ □ □ Partially hydrogenated oils may cause health risks due to the presence of trans fats. Hydrogenating oils reduces shelf-life but creates a good source of healthy fats. Catalytic hydrogenation reduces double bonds, increasing melting temperature. Catalytic hydrogenation oxidizes double bonds, decreasing melting temperature. Catalytic hydrogenation combats the...
36. Compare the energy yields from the oxidative metabolism of glucose and of stearic acid. Calculate the energy yield on the basis of ATP yield per carbon. Which gives a higher yield of ATP per carbon? Show your work.
Before stearic acid (an 18 carbon fatty acid) can serve as a substrate for Acyl CoA dehydrogenase, what has to happen? It must be saturated. O A coenzyme A group must be added. It must be deaminated. o It must be decarboxylated.
25. What type of linkage (bond) attaches these two molecules? Stearic acid o (a fatty acid) Oleic alcohol (a fatty alcohol) a) peptide b) ketone-alcohol c) fatty acid linkage d) ether e) ester 24. This structure is classified as a CH3(CH2)14--0-CH,-(CH2)28-CH3 Palmitic acid Triacontanol
Give the structure of the two stereoisomers formed when (E)-3-methyl-2-hexane undergoes catalytic hydrogenation. Assign R or S to both stereoisomers.
I'm not sure how to draw the mechanism such as the electron moving and so on. The structure of triethanolamine is N(CH2CH2OH)3. Steric acid is an 18-carbon saturated fatty acid. Write the mechanism for the acid-base reaction between triethanolamine and stearic acid. Name the salt formed
please help! When oleic acid reacts with hydrogen to form a saturated fatty acid, indicate the stoichiometry of the reaction and the product that is formed. If the stoichiometry of H2 or the product is not integral, enter a fraction (i.e. 3/2) |н> oleic acid + Reactants Product Some food products are "partially hydrogenated". This means that only a portion of the original unsaturated fatty acids have hydrogen added to saturate the original unsaturated bonds. When linoleic acid is partially...
Modify this 18-carbon fatty acid so that it becomes an omega-3 (0-3) fatty acid designated as 18:3. Draw the double bonds in the cis configuration. Select Draw Rings More Erase 2
Question 14 4 pts For the following fatty acid molecules, which of the following is correct? Oleic acid CH-(CH2)-CH=CH(CH2),COOH Lauric acid CHECH COOH Arachidonic acid CH3(CH2).CH=CHCH2CH=CHCH2CH=CHCH2CH=CH(CH3),COOH Stearic acid CH-(CH2)76COOH Linoleic acid CH(CH2).CH=CHCH2CH=CH(CH2),COOH Oleic acid is a polyunsaturated fatty acid and lauric acid is a saturated fatty acid. O Both oleic acid and arachidonic acid are polyunsaturated fatty acids. Lauric acid is a saturated fatty acid and arachidonic acid is a polyunsaturated fatty acid. O Both lauric acid and stearic acid...
5) (3 pts) Draw an essential -6 fatty acid with 18 carbons and two cis double bonds. Number carbon atoms in this fatty acid starting at the carboxyl group. 6) (3 pts) Draw an essential 0-3 fatty acid with 18 carbons and three cis-double bonds. Number carbon atoms in this fatty acid starting at the carboxyl group. 7) (3 pts) Draw an unnatural trans-fatty acid arising from partial hydrogenation that contains 14 carbons and two double bonds, one of which...