Chemistry

Law of Multiple Proportions was proposed by Dalton in 1803. According to this law, if two elements can combine to form more than one compound, the…

Law of Gaseous Volumes was given by Gay Lussac in 1808. He observed that when gases combine or are produced in a chemical reaction they do…

In 1811, Avogadro proposed that equal volumes of gases at the same temperature and pressure should contain equal number of molecules. Avogadro made a distinction…

Formaline: 30-40% aqueous solution of formaldehyde is called formaline. It is used as preservative in biological laboratory to preserve different dead animal. Formaline is used…

Preparation of Ghee from butter: It is easy to prepare ghee from the boiling of butter. In this process butter is boiled slowly so that…

While calculating, there is a need to convert units from one system to other. The method used to accomplish this is called factor label method…

Law of definite composition was given by, a French chemist, Joseph Proust. He stated that a given compound always contains exactly the same proportion of elements…

Law of Conservation of Mass states that matter can neither be created nor destroyed. The law of conservation of mass states that mass in an isolated system…

Curing is the food preservation process. In this process salt are added to the food and the water is removed from food by osmosis. For…

Working System of Vinegar: The chemical structure of ethanoic acid in vinegar neutralize the active site of microorganism. The Pka value of Ethanoic acid is 4.75.…