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View Attempt 1 of unlimited Title: Chapter 19(2) Started: November 15, 2009 8:30 PM Submitted: November 15, 2009 9:20 PM Time spent: 00:50:41 Total score: 5/6 = 83.33% Total score adjusted by 0.0 Maximum possible score: 6 1. Chapter 11 S Ksp 12 At 25 o C the solubility of zinc sulfide is 1.26 x 10 -12 mol/L. Calculate the value of K sp at this temperature. Give your answer in scientific notation to 2 SIGNIFICANT FIGURES (even though this is strictly incorrect). Student Response Value Correct Answer 1. 1.6E-24 100% Equals 1.6e-24 (100%) General Feedback: K sp = S 2 Score: 1/1 2. S g to Ksp 5 The solubility of calcium sulfate at a given temperature is 0.0172 g/100 mL. Calculate the K sp at this temperature. Use E notation and give your answer to 3 significant figures. Student Response Value Correct Answer Answer 1.60E-6 100% 1.60E-6 (1.60 × 10 -6 ) Score: 1/1 3. Chapter 11 Ksp S 22 What is the solubility in moles/liter for lead (II) fluoride at 25 o C given a K sp value of 3.7 x 10 -8 . Write using scientific notation and use 1 or 2 decimal places (even though this is strictly
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This note was uploaded on 02/17/2010 for the course CHEM 1332 taught by Professor Shiv during the Fall '08 term at University of Houston.

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