GC question HELP

[jjw822]

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in topscore test 1 in GC question 65, it asks what is the expression for the solubility product constant, Ksp for BaCl2?

they say answer is [Ba2+][Cl2-] but i think it is [Ba2+][Cl1-]^2 because it will dissociate as BaCl2 --> Ba2+ + 2Cl1-

Am i wrong??

 

[baedero1]

yes, you right, the answer should be [Ba2+][Cl1-]^2