Jawabanmu

2014-06-12T23:08:41+07:00
S= gr/Mr.v
= 4/602. 0,1
=4/60,2 = 0,07

Gd2(SO4)3 -> 2Gd 3+ + 3SO42-
s. 2s. 3s
ksp = 2s^2 . 3s^3
= 6 s^5
= 6. 0,07^5
= 6. 16807 . 10^5
= 100842 10^5

kalo gak salah jawabannya gini
maaf,slah kyknya,krna gk da di pilihn gndanya...
2014-06-13T07:50:05+07:00
S = massa/mr x 1000/V (mL)
    = 4/602 x 1000/100
    = 40/602
    = 0,07
 S Gd2(SO4)3 --> 2Gd 3+ + 3SO4 2-
   7.10^-2              14.10^-2     21.10^-2

ksp = [ Gd 3+ ]^2 [SO4 2-]^3
        [14.10^-2]^2 [21.10^-2]^3
         196.10^-4 . 9621.10^-6
         1815156.10^-10