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We are asked to calculate the Ksp of Ca(OH)2 when it is shaken with water to produce a saturated solution. This solution is filtered and a 60.00 mL sample and was titrated with HCl requiring 11.18 mL of 0.0978 M HCl to reach the endpoint.
Step 1: First, we will get the number of moles of hydroxide. The reaction that happens during titration is:
Ca(OH)2 (aq) + 2 HCl (aq) → CaCl2 (aq) + 2 H2O (l)
A coefficient of two (2) is added to HCl and H2O to balance the equation.
Excess Ca(OH)2 is shaken with water to produce a saturated solution. The solution is filtered, and a 60.00 mL sample titrated with HCl requires 11.18 mL of 0.0978 M HCl to reach the end point.
Calculate Ksp for Ca(OH)2.
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Ksp concept. You can view video lessons to learn Ksp. Or if you need more Ksp practice, you can also practice Ksp practice problems.
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Based on our data, we think this problem is relevant for Professor Dixon's class at UCF.