At a temperature other than 25oC, Cd(OH)2 solubility is 5.5 x 10-4 . Calculate it's Ksp...

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At a temperature other than 25^oC, Cd(OH)₂solubility is 5.5 x 10^-4 . Calculate it's Ksp at thistemperature.
[ACCORDING TO MY TEXT, Ksp of Cd(OH)₂ = 2.5 x10¹⁴ @ 25 C]
A.1.7 x 10^-10
B.6.7 x 10^-10
C.2.5 x 10^-14

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3.8 Ratings (660 Votes)

At a temperature other than 25^oC, Cd(OH)₂ solubility is 5.5 x 10^-4 . Calculate it's Ksp at this temperature.

A.1.7 x 10^-10

B.6.7 x 10^-10----------------answer

C.2.5 x 10^-14

Write Equation:Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Cd(OH)₂_(s) ----------Ã Cd²⁺_(aq) + 2 OH^-_(aq)

Initial Conc.Â Â Â Â Â Â Â Â -Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 0Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 0

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Change Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â -Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â +5.5X 10^-4Â Â Â Â Â Â Â +2(5.5X 10^-4)

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â EquilibriumÂ Â Â Â Â Â Â Â Â Â Â -Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 5.5 X 10^-4Â Â Â Â Â Â Â Â Â 11 X 10^-4

Ksp = [cd ][OH^-]²

Ksp = [5.5 X 10^-4][11 X 10^-4]²

Ksp = 0.00055 X 0.00000121 =6.655e-10

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