Answer to Question #26600 in Inorganic Chemistry for ramya sarvani

Question #26600
which of the following is least soluble in water?
A)BaF2 B)SrF2 C)MgF2 D)CaF2
1
Expert's answer
2013-03-19T10:14:27-0400
To know what of the substances is least soluble we have to compare their solubility products.
The least soluble substance has the lowest solubility product.
The dissociation equation is

MF2 = M2+ + 2F- , where M2+ is Ba2+, Sr2+, Mg2+, Ca2+

Ksp = [M2+][F-]2

Ksp(BaF2) = 1.7 x 10-6
Ksp(SrF2) = 2.5 x 10-9
Ksp(MgF2) = 6.4 x 10-9
Ksp(CaF2) = 4.0 x 10-11

Answer: The least soluble is CaF2

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Assignment Expert
21.10.20, 20:50

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bs kedar
08.10.20, 15:58

thanks really helped me a lot

bs kedar
08.10.20, 15:58

thanks really helped me a lot

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