His early career was in church law, although he studied math and physics extensively.
Due to his work, scientists quickly came to understand that mass and weight are not the same thing, either.
At the time though, the words atom and molecule were essentially thought to be the same thing, so it was Avogadro who determined that there were different kinds of molecules.
Avogadro held numerous interesting positions throughout his lifetime and was credited with introducing the metric system to his region.
He was reinstated, and the king decreed a constitution be established; Avogadro went on to teach physics at the university for another twenty years.
Unfortunately, Avogadro's work was not well received within the scientific community; it was only four years after his death that research from other scientists began to prove his theories correct.
In 1811by hypothesizing that two given samples of an ideal gas, of the same volume and at the same temperature and pressure, contain the same number of molecules avagadros law was discovered.