Avagadro's Number: How He Determined 6.022E23 Atoms in 12g Carbon

[harp AP 2010]

How did he determine that there were 6.022E23 atoms in 12g of carbon?

 

[NobodySpecial]

He didn't - it's named after him. He did work that confirmed atoms combined in whole numbers but the value wasn't found until 100 years later

 

[harp AP 2010]

So how was it figured out, and by who?

 

[NobodySpecial]

Perrin got the nobel prize for it in the 20s

http://en.wikipedia.org/wiki/Avagadro's_number

 

[Borek]

http://lmgtfy.com/?q=methods+of+determining+avogadro+constant