Jawabanmu

2014-06-08T16:01:51+07:00
N= V/Vm = 5,6/22,4 = 1/4 mol
Mr SO3 = S + 3 O = 32 + 3.16 = 80
m = n.Mm = 1/4 x 80 = 20 g (d)
2 1 2
2014-06-08T16:02:41+07:00
D. 20 gr

mol so3 = 5.6/22.4 =0.25 mol
massa = 0.25 molx 80 =20 gr