Amedeo Avogadro Essay

Published: 2021-07-14 08:30:07
essay essay

Category: Essays

Type of paper: Essay

This essay has been submitted by a student. This is not an example of the work written by our professional essay writers.

Hey! We can write a custom essay for you.

All possible types of assignments. Written by academics

Amedeo Avogadro Italian physicist who originated thehypothesis that the equal volumes of all gasses, under thesame pressure and temperature conditions, contain thesame number of molecules. Avogadro made this hypothesisin 1811. It has since been fully proven and is now known asAvogadros law. Avogadro was born in Turin, Italy, an August 9th,1776, to an artistic family.
Avogadro practiced law andthen studied physics and mathematics. He was appointedprofessor of physics at Vercelli in 1809. In 1811 he setforth his famous hypothesis, now known as Avogadros law. The law stated that equal volumes of all gasses at the sametemperature and pressure contain the same number ofmolecules.
Avogadros law helped overcome flaws in JohnDaltons atomic theory. Avogadro also distinguishedbetween an atom and a molecule, and made it possible todetermine a correct table of atomic weights. The correctionand standardization of atomic weights began in 1858 whenStanislao Cannizzaro, an Italian chemist, reminded otherchemists about Avogadros work. The hypothesis wasvirtually ignored by chemists because when it was tested in1881 appropriate temperatures were not used by otherscientists. 6. 0221367 x10 23Avogadros number stated that a mole of anysubstance is that quantity of the substance that weighs (ingrams) the same as its molecular weight.
For example,molecular oxygen, has a weight of 32 grams (16 for eachoxygen atom); one mole of oxygen weighs 32 grams. A moleof a substance always contains the same number molecules–the Avogadros lawas a mole of any substance. Therefore, Avogadros law can be stated in terms of moles,namely that equal volumes of gases at the sametemperature and pressure contain the same number ofmolecules by simply weighing out an equal number ofmoles. Avogadros number itself holds true for allsubstances, what ever there state.

Warning! This essay is not original. Get 100% unique essay within 45 seconds!


We can write your paper just for 11.99$

i want to copy...

This essay has been submitted by a student and contain not unique content

People also read