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BaF2의 몰용해도

by 영원파란 2018. 11. 22.

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BaF2의 몰용해도

 

 

What is the molar solubility of barium fluoride (BaF2) in water? The solubility-product constant for BaF2 is 1.7*10^-6 at 25.

 

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BaF2(s) Ba^2+(aq) + 2F^-(aq)

Ksp = [Ba^2+][F^-]^2

 

1.7*10^-6 = (x) (2x)^2 = 4x^3

x^3 = (1.7*10^-6) / 4

x = [(1.7*10^(-6)) / 4]^(1/3) = 0.0075 M

 

 

: 7.5*10^-3 M

 

 

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