<span>Answer:
MgF2 ====⇒ Mg+2 + 2F-
Ksp = [Mg+2][F-]^2
Let S = molar solubility of MgF2
[Mg+2] = S ; [F-] = 2s
Since the [F-] is initially 0.40 M, then [F-] = 0.40 + 2S
6.4 x 10^-9 = (S) (0.40 + 2S)^2 ; one can neglect the 2S in the 0.40 + 2S expression since it is very, very small compared to the 0.40 already present.
6.4 x 10^-9 = S(0.40)^2
S = 4.0 x 10^-8
Molar solubility = 4.0 x 10^-8</span>
Answer:
25cm
Step-by-step explanation:
one the possibility 36 - 11 =25 the answer is 25
Answer:
98 x 24 = 2352
2352 x 2400 = 5,644,800
2352 x (-48) = - 112,896
5,644,800 - 112,896 = 5,531,904
5,531,904 x 24 = 132,765,696
Step-by-step explanation:
