a formulae :)
Posted on Thursday, February 3, 2011
@ 12:58 AM with
0 comments
buddy ke ? ?
ahahahaha :D
my new classmate :)
MOLE CONCEPT
TO DESCRIBE THE NO.OF IONS , ATOM , MOLECULES
no of ions/atom/molecules = mol x NA(AVOGRADO CONSTANT)
(6.02 x 10^23)
example :
find the number of atom in 1 mol of cO2
no of atom = mol x NA
= 1 x 6.02 x 10^23 x 3
=1.806 x 10^24
no of mole = mass /RAM @ RMM
example :
mass of O2 is 3.2g , find the number of mol for O2 ?
mol=mass/rmm
mol=3.2/16(2)
=3.2/32
=0.1 mol
p/s : wan , , if ko ta paham , , nanti ko ley tanye haku waktu prep hari ahad nie :)
