Avogadro!!!

An Italian chemist named Amedeo Avogadro, who lived between, 1776 and 1856, came up with a theory that basically said there is a relationship between mole and volume, that as the mole increased, so did the volume. (nick’s lecture notes, 23/3/09)

The official theory is that ‘equal volumes of gases at the same temperature and pressure contain the same number of molecules regardless of their chemical nature and physical properties.’ (kiwi web) This all equals a number and that number, Avogadro’s number is, 6.23 x 10 to the power of 23 however some just say 6 x 10 to the 23. (as seen on my two mole videos) This can also be shown in a mathematically equation which is…

V/n = k

V = volume of the gas. 

n = amount of substance of the gas. 

k = proportionality constant

Out of this comes the ideal gas constant which is…

(p1-V1)/(T1-n1)= (p2-V2)/(T2-n2)=constant.

p = pressure of gas

T = temperate of gas

I didnt find this site to helpful, i really didnt understand what it was talking about by the end.

Kiwi web, Chemistry and NZ, 'Avogadro’s law - What is it?', viewed 29/3/09, http://www.chemistry.co.nz/avogadro.htm