This is because oil and grease are non-polar, which means they will not dissolve in the water. Soap can mix with both water and with oil. Why? The soap molecule has two different ends, one that is hydrophilic (polar head) that binds with water and the other that is hydrophobic (non-polar hydrocarbon tail) that binds with grease and oil.
No.Only water and soap can be mixed together.Because,soap is the sodium or potassium salt of higher fatty acids.So,it will dissolve in water.Oil is an ester of glycerol with higher fatty acids and ...
The other end is hydrophobic, and is more attracted to the molecules that make up oil and grease. When soap dissolves in water, the hydrophilic end bonds with water molecules, both dissolving the soap and reducing the surface tension of the water, forcing the water molecules apart and allowing them to soak into dirt and grime easier.
Soaps and detergents act as an emulsifier, that helps bring oil and water together so that the dirt and grease can be easily rinsed away. When greasy dirt or oil is mixed with soapy water, the soap molecules arrange themselves into tiny clusters called micelles.
Therefore, soap can dissolve in oil. The "heads" of soap molecules, however, are hydrophilic and ionic in character. This allows them to dissolve in ionic and polar substances, e.g. water. When oily dirt is immersed in a soap solution, the tails attach themselves to the oil.
Water dissolves other polar molecules and oil dissolves othe … r non-polar molecules but water does not dissolve oil (and vice-versa). Soap molecules are large. At one end they behave like polar ...
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Soap is an excellent cleanser because of its ability to act as an emulsifying agent. An emulsifier is capable of dispersing one liquid into another immiscible liquid. This means that while oil (which attracts dirt) doesn't naturally mix with water, soap can suspend oil/dirt in such a way that it can be removed.
Soaps take advantage of the molecular differences between water and oil. Part of a soap molecule is nonpolar, and therefore can mix with oil. Another part of a soap molecule is polar, and therefore can interact with water molecules.
Most acids do not dissolve oil because the two types of substances differ chemically. When mixed, the two form two separate layers as water and oil does. You can, however, dissolve one type of oil with another; depending on the oils, the two will make a smooth mixture. Soaps and other substances also dissolve oil, ...