CHM 2046C  Module 12    Name: ____ Sample Exam_____

J. Determining Ksp from a Salt’s Solubility        10 points

 

Given the following insoluble salts, estimate the salt’s molar solubility from the Ksp :

 

1.   Calcium hydroxide, Ca(OH)2 (s)    dissolves in water to the extent of 1.04 g/L. What is the value of the Ksp ?

 

 

 

 

 

 

 

 

 

 

 

 

2.   You place 1.834 g of  Ca(OH)2 (s)     in 1.00 L of pure water at 25oC. The pH of the solution is found to be 12.68. What is the value of the Ksp ?