Biographical Note for avogadro's law
Avo·ga·dro \ˌav-ə-ˈgäd-(ˌ)rō, ˌäv-\play Count Amedea (1776–1856), Italian physicist and chemist. Avogadro is considered one of the founders of physical chemistry. In 1811, he made his outstanding scientific contribution: his hypothesis, now accepted as a scientific law, that equal volumes of gases at the same temperature and pressure contain the same number of molecules. This hypothesis was a landmark in 19th-century chemistry and is one of the basic concepts of modern chemistry.
Seen and Heard
What made you want to look up Avogadro's law? Please tell us where you read or heard it (including the quote, if possible).