Science Fair Project Encyclopedia
Amount of substance
Amount of substance of an object is a physical quantity that measures the number of elementary entities in the object compared with the number of elementary entities in 0.012 kilogram of pure carbon-12 (elementary entities may be atoms, molecules, ions, electrons, or particles). This latter quantity is deemed a unit amount of substance.
The SI Base Unit for Amount of substance is the mole (mol)
The amount of substance of an object is a separate physical quantity, and should not not be confused with, the amount of matter or mass of an object, which has the SI unit of kilogram (kg).
Last updated: 08-29-2005 13:27:51
10-26-2009 08:16:03
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details