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A solid sample of Ca(OH)2 is shaken with 0.0100 M CaCl2 at some temperature. Once equilibrated, some solid Ca(OH)2 remains un-dissolved.
The solution is filtered and a 25.00 mL sample needs 17.50 mL of 0.0150 M HCl to neutralize it. Determine the value for Ksp of Ca(OH)2 from this data.

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