Random Facts about Chemistry !

Stoichiometry and the Mole Concept

Relative molecular mass [Mr] :

the relative molular mass of a substance (compound, mixture, element) is defined as the average mass of one molecule of the substance, compared with the mass of a carbon-12 atom, which is taken as 12 units.

this is crap. i dont even understand anything, and im lefting from the worksheet.

no. of moles = no. of particles / arogadro constant (6 x 10^23)

no. of moles = mass / molar mass

no. of moles = volume / molar volume (24 dm^3)

i tried. hahaa ~ ain;t im nicee ? u can enjoy my blog and study Chemistry at the same time. *smiles*

actually i am typing these just because im too lazy to write them down black and white. lol. typing;s so much easier. *sheepish grin*