Write the reaction equation: C2H4-C2H5OH-C2H5COOC2H5-C2H5COOH-C15H31COOH

To obtain ethyl alcohol (C2H5OH) from ethylene (C2H4), it is necessary to add water (HOH):

CH2 = CH2 + HOH = CH3-CH2-OH;

Further, in order to obtain ethyl propanoic acid (C2H5COOC2H5), it is necessary to carry out the esterification reaction in the presence of concentrated sulfuric acid when heated:

C2H5OH + C2H5COOH = C2H5COOC2H5

To obtain propanoic acid, you need to hydrolyze the ester with water:

С2Н5СООС2Н5 + Н2О = С2Н5СООН + С2Н5ОН

Unfortunately, I do not know how to get palmitic acid from propanoic acid in one step.