What are the structures of the products of a complete acid hydrolysis of glycerophospholipid where the alcohol is ethanolamine, HOCH2CH2NH2 and the fatty acid is stearic acid. Can anyone help on this one? Confused here...

To determine the structures of the products of a complete acid hydrolysis of glycerophospholipid with ethanolamine and stearic acid, we need to understand the process of hydrolysis. Allow me to explain step by step:

Step 1: Identify the glycerophospholipid structure
Glycerophospholipids consist of a glycerol backbone attached to two fatty acids and a phosphate group. In this case, the fatty acid is stearic acid (C18H36O2) and the alcohol is ethanolamine (C2H7NO). Thus, the glycerophospholipid with ethanolamine and stearic acid will have the following structure:

O
|| C-O-R1
O || C-O-R2
HO-C--C-O-P(=O)(O-)
O ||
|| OH
O

Where R1 represents the stearic acid chain and R2 represents another fatty acid chain.

Step 2: Perform acid hydrolysis
Acid hydrolysis involves breaking the ester bonds between the glycerol and the fatty acids. In the presence of a strong acid, such as hydrochloric acid (HCl), the ester bonds are cleaved, resulting in the formation of the free fatty acids.

Step 3: Identify the products
In this case, since the starting glycerophospholipid has stearic acid attached to the first carbon of the glycerol backbone, the acid hydrolysis will release stearic acid as one of the products.

The other product will be ethanolamine, released from the glycerol backbone. Ethanolamine is formed as a result of the cleavage of the ester bond between the glycerol and the ethanolamine.

Therefore, the products of the complete acid hydrolysis of glycerophospholipid with ethanolamine and stearic acid are stearic acid and ethanolamine.

I hope this explanation helps you understand the process and the resulting products.