Saponification is a chemical reaction _____. A. due to the presence of a strong organic acid. B. that results in an alcohol and
a carboxylic acid. C. that explains why soap does not wash off easily in hard water. D. that always results directly in a soap.
1 answer:
Answer:
that results in an alcohol and a carboxylic acid.
Explanation:
Saponification is a chemical reaction process of alkaline hydrolysis of esters(R'COOR group) by which soap is obtained.
For Example, when a base such as sodium hydroxide [NaOH] is used to hydrolyze an ester, the products are a carboxylate salt and an alcohol. Because soaps are prepared by the alkaline hydrolysis of fats and oils.
In a saponification reaction, alkaline hydrolysis of fats and oils with sodium hydroxide yields propane-1,2,3-triol and the corresponding sodium salts of the component fatty acids.
i.e Fat or oil + caustic alkali ⇒ Soap + propane-1,2,3-triol
As a specific example, ethyl acetate and NaOH react to form sodium acetate and ethanol:
The reaction goes to completion in the image below:
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<u>Answer:</u> The pH of the solution is 1.703
<u>Explanation:</u>
We are given:
Concentration of monochloroacetic acid = 0.31 M
The chemical equation for the dissociation of monochloroacetic acid follows:
<u>Initial:</u> 0.31
<u>At eqllm:</u> 0.31-x x x
The expression of for above equation follows:
We are given:
Putting values in above equation follows:
Neglecting the negative value of 'x' because concentration cannot be negative.
To calculate the pH of the solution, we use the equation:
Hence, the pH of the solution is 1.703