Jawabanmu

2014-05-21T23:26:16+07:00
A) Mol = mol
M/ Mr = N / Na
M = Mr . N / Na
= 17 . 12,04 .10^22 / (6,022 . 10^23)
= 3,3988 gr

b) M = Mr . N /Na
= 207 . 3,01 . 10^23 / (6,022 . 10^23)
=103,4656 gr

c) M = Mr . N / Na
= 256 . 1,204 . 10^22 / (6,022 . 10^23)
=5.1182 gr
6 3 6