Amedeo Avogadro.

Amedeo Avogadro was born on 9th August 1776 in Turin, Italy. He graduate to become a lawyer moreover later he became interested in science. In 1800 he began his private studies in science and mathematics. In 1809 he started t distributivelying science in high school in Vericelli. It was in Vericelli that he promulgated wholly his papers regarding masses and densities of gases and formulated the hypothesis which is forthwith knows as the Avogadro Law.

In 1811 Avogadro published an article showing the difference among a molecule and an atom. Other scientist homogeneous Dalton had got confused and believed that a molecule and atom are the same. Avogadro clarified that two atoms of gases like hydrogen and oxygen formed one molecule of to each one gas. Avogadro further formulated Avogardos Principle which stated that equal volumes of all gases at the same temperature and pressure contain the same come of molecules. This bidding was of great importance. Other scientists like Cannizarro used this statement to determine atomic weights, molecular weights of various gases and the number of molecules in molar weights of the gases. Cannizarro also determined the constant number of molecules in molar weights of the gases to be exactly 6.022 x 1023. This number was called Avogadro depend in the honour of the scientist.

Before Avogadros time, the qualitative basis of chemistry was well(p) known but quantitive basis was not clear. For example, it was known that chlorine and hydrogen will react to form hydrochloric acid but it was not clearly known how a good deal hydrogen was compulsory to react fully with certain amount of chlorine and how much hydrochloric acid will be produced. Avogadros researched helped exact determination of quantities of different gases which will be required to fully react with each other and also the exact quantity of the new...

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