what is soap ? Name one soap Explain the cleaning action of soap Draw diagram to illustrate answer
Answers
Answer:
SOAP is a messaging protocol specification for exchanging structured information in the implementation of web services in computer networks. Its purpose is to provide extensibility, neutrality, verbosity and independence.
ANSWER
(a) A soap is the sodium salt (or potassium salt) of a long chain carboxylic acid (fatty acid) which has cleansing properties in water.
Example : Sodium stearate, C 17 H 35 COO − Na +
(b) A soap molecule has two parts: the long-chain organic part and the ionic part containing the −COO − Na +
group. It has to be remembered that this is not an ion, the atoms are all covalently bonded, the electrical charges show how the charges get polarized in the group. A soap molecule has a tadpole-like structure.
(c) The cleaning action of soap has been explained below:
Polar end (end with sodium or potassium ion) of soap is hydrophilic (attracted towards the r) and the non-polar end (the hydrocarbon part) is hydrophobic (attracted towards hydrocarbons).
On dissolution in water, the hydrophobic ends attach themselves to dirt and remove it from the cloth.
Soap molecules form micelle and trap the dirt at the centre of the cluster. They remain suspended in water like particles of colloidal solution. The trapped dust particles are easily rinsed away with water.
