|
Avogadro's Number is today reckoned to be 6.022045 x 1023 (ie it is 602204500000000000000000!!!) by using x-rays to measure the number of atoms in accurately-weighed samples of metals. This is amazingly accurate, but if we could improve our measuring apparatus even further, we would get an even more accurate value.
This number is named in honour of the seventeenth century Italian chemist, Amedeo Avogadro, who first realised that the volume of a gas (at any given pressure and temperature) was proportional to the number of atoms or molecules in it, regardless of what gas it was. This theory was then extended to cover the relationship between the number of atoms or molecules and the mass of a solid.
Anne Evans
|
|
~ FORWARD LINKS ~ |
| | | |
|
|
|
|
|
|
|
|
|
|
| | | |
|
|
|
|
|
|
|
|
|
|
| | | |
|
|
|
|
|
|
|
|
|
|
| | | |
|
|
|
|
|
|
|
|
| | | |
~ FORWARD LINKS ~ |
|
|