Write the complete equation for the hydrolysis of a triacylglycerol in which the fatty acids are two molecules of stearic acid and one of oleic acid.

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Welcome back, everyone give the equation for the base catalyzed hydrolysis of a Tr Ayl glycerol consisting of bic acid, Loic acid and mic acid. So, first of all, we want to draw the Tr Ayl Glycerol itself and we have to recall that its structure begins with Glycerol. We are simply replacing each hydrogen atom bonded to oxygen with carbonyl and that carbonyl corresponds to each acid. So we first of all want to draw three carbos. And now our goal is to determine the nature of the side chain for each carbonel and those c genes will correspond to the given acid. So the first one is Pulmic acid and we have to recall that Pulmic acid has 16 carbons. The next one is Loic acid and auric acid has 12 carbons. And then finally, we also have mistic acid. Now, Mistic acid has 14 carbons, those are fully saturated chains, they do not have any double bonds whenever we consider the carbon carbon bonds, right. So essentially, the problem doesn't state how they are bonded to oxygens from Glycerol rights, we can essentially arrange them in an ascending order, starting with the shortest chain. This is just one of the possibilities. Right. We want to add 12 carbons. We have the first one, the second one. So let's add 10 more. So one to 34567 89 and 10. And now if we check, we have 123456789, 1011, 12 carbon total, then we want to add 14 total. We already have two. We 45678 9, 10, 1112, 13 and 14. And finally, we want to add 16 from palmitic acid to 12, 34, 56, 789, 1011, 12, 1314, 15 and 16. So we have the starting tr ayl glycerol. And according to the problem, it reacts with or basically, it's a base catalyze hydrolysis. So we can choose a strong base such as sodium hydroxide. And we want to choose its aqueous solutions. We just add h2o the reaction doesn't need to be balanced, right. So we can just add sodium hydroxide solution above the arrow. The first product that we are forming is Glycerol. It is a base catalyze hydrolysis. So we have to recall that we are simply breaking the carbon oxygen bonds. Then we're adding hydrogen to each oxygen from Glycerol and this gives us Glycerol itself. And the second product is going to be a carboxylate salt. Now, we have three different salts. We are essentially going to begin with the first side chain. And our goal is to add oxygen with a negative charge, this gives us carboxylate. And now because it is a salt, we just add a counter ion which is the sodium cion. This is the first one. Now, for the second one, we're taking the second side chain which allows us to draw the second her box laid salt, we simply adding oxygen another oxygen with a negative charge and the sodium cion. And then finally, we have our third carboxylate salt, which comes from the third side chain. We have had a negative charge for oxygen and sodium cat on and that's it. We have the required equation. Thank you for watching.

Write the complete equation for the hydrolysis of a triacylglycerol in which the fatty acids are two molecules of stearic acid and one of oleic acid.

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Key Concepts

Triacylglycerol Structure

Hydrolysis Reaction

Fatty Acid Composition