Jawabanmu

2014-05-09T19:58:41+07:00
B. sigma partikel = mol * 6.02 * 10^22
3.01 * 10^22 = mol * 6.02*10^22
mol = 0,5 mol
mol=gr/Ar
0,5=gr/56
gr= 28 gr

a. gr=mol*Mr
gr=0,5 gr*14
gr=7 gr