Monday
April 21, 2014

Homework Help: Chemistry

Posted by Kristin on Wednesday, April 14, 2010 at 1:49pm.

I'm trying to find the solubility of Ca(OH)2 in .0125 mol/L aqueous NaOH. Here is my data:

Vol of solution used per titration: 20mL
Conc of HCl: .1201 mol/L
Average Titre: 4.71

I need to calculte:
1. the TOTAL [OH-] in the saturated solution of Ca(OH)2 in NaOH
2. the [OH-] due to dissolved Ca(OH)2
3. [Ca2+] in the saturated solution
4. the Ksp for Ca(OH)2 for the saturated solution of Ca(OH)2 in NaOH at 21.2 degrees C
5. determine the solubility of Ca(OH)2 in the NaOH solution

I'm just not understanding how to do the calculations with NaOH included.

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