Tag Archives | preparation

What are the important scientific methods of food preparation?

Food preparation is much more than a science; it is an art: for it is linked with the total cultural pattern of people. Food preparation requires a sense of discrimination in the blending of flavours as well as of textures, colours and shapes.  

How to prepare natural rubber ?

The latex obtained from rubber trees is a suspension of small rubber globules in water and has the appearance of milk. Rubber is obtained by coagulation of the latex by adding dilute acid.

How is ethane (or ethylene) prepared in a laboratory ?

Ethane gas can be prepared in a laboratory by the cracking of hydrocarbons such as kerosene or candle wax. A simple experimental set-upon for the preparation of ethane (ethylene) by cracking is shown.

How to prepare soap ?

Soap is actually a sodium or potassium salt made by combining an organic acid with an alkali. Soap is prepared from oils or fats. Oils like olive oil, castor oil, palm oil or any animal fat can be used in the manufacture of soap.

How to prepare saturated solution of a substance ?

Take about 100 ml of water in a beaker. Keep this water at the desired temperature by using a water bath. Add a small quantity of the given substance into the water and dissolve it by stirring. Add a little more substance and again stir to dissolve it.

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