Write the mechanism of cleaning action of soaps why do soap do not form latters with hard water
Answers
ANSWER 1:
Natural Organic Shea Butter SoapSoap, water, and oil are all made up of molecules. Some molecules are hydrophilic, (hydro=water and philic=loving) these molecules are attracted to water. Some molecules are hydrophobic, (hydro=water and phobic=fearing), they are repelled by water.
Molecules that readily mix with water are hydrophilic.
Molecules that readily mix with oil are hydrophobic.
Since we all know that water and oil do not mix, then we also know that hydrophilic and hydrophobic compounds do not mix.
Two other words we need to know are polar and nonpolar. Nonpolar compounds, like oil and grease, cannot dissolve in water. Polar compounds can dissolve in water.
Most of what we call dirt is grease or oil which will not come off with just water. This is because oil and grease are non-polar, which means they will not dissolve in the water.
ANSWER: 2
When soap is added to hard water, the Ca2+ and Mg2+ ions present in hard water react with soap. The sodium salts present in soaps are converted to their corresponding calcium and magnesium salts which are precipitated as scum. The insoluble scum sticks on the clothes and so the cleaning capacity of soap is reduced.
The top answer is correct so I don't want to mention it ..