Week 6 Chemistry - What is a Mole?

The early and mid 19th century scientists and engineers were looking for a standardized measurement for volumes of gas that were in a size applicable to practical use. Although a number of different people worked on this problem, Avogadro (1776-1856) put in place the theoretical framework through his tested hypothesis: Identical volumes of any gas at a standard identical temperature and pressure will contain the equal number of molecules.
This measurement eventually became known as a Mole and was standardized to equal approximately 602,213,670,000,000,000,000,000 molecules. Just like a dozen eggs equals 12 eggs.