Question

For soaps critical micelle concentration (CMC) is \[{10^{ - x}}\](min.) to \[{10^{ - y}}\](max.) mol/L. What is the value of x?

Answer 1

Hint: In soaps, the particles are associated and enter the colloidal range and called micelle, these micelle formation takes place above a particular concentration. This particular concentration can be called the critical micelle concentration value within the range of \[{10^{ - 4}}\]to \[{10^{ - 3}}\].

Complete answer:
Soap is a chemical compound consisting of sodium or potassium fatty acids. These soaps can be prepared by reacting fatty acids derived from oils or fats with alkali such as bases like sodium hydroxide or potassium hydroxide.
Soap can be defined as sodium stearate with the molecular formula \[{C_{17}}{H_{35}}COONa\], which consists of alkyl part which is water repellent and alkali part which is water loving group.
In soaps, the particles are associated and the solution becomes a colloidal solution or suspension, to become a colloidal solution or suspension, the particle's size is an important factor. These particles can enter into the colloidal range, then these are called micelle.
To become micelle these particles have to cross a particular temperature, this particular temperature can be called as kraft temperature. These particles have to be above a particular concentration called critical micelle concentration. For soaps the critical micelle concentration (CMC) is \[{10^{ - 4}}\] (min.) to \[{10^{ - 3}}\] (max.) mol/L, the value of x will be 4.

Note:
As the critical micelle concentration (CMC) is \[{10^{ - 4}}\] (min.) to \[{10^{ - 3}}\] (max.) mol/L, the value of x and y will be 4 and 3. The kraft temperature is also an important factor in soaps. As critical micelle concentration (CMC) is the concentration, it can be expressed in moles and liters.