Chem 2 test 3 - ViewAttempt1of1 Title: Exam 3 Started:...

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View Attempt 1 of 1 Title: Exam 3 Started: April 28, 2010 5:32 PM Submitte d: April 28, 2010 6:36 PM Time spent: 01:03:41 Total score: 11/20 = 55% Total score adjusted by 0.0 Maximum possible score: 20 1. At 25 o C the solubility of copper(I) chloride is 1.00 x 10 -3 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. 3.2E-02 0% Equals 1.0e-6 Equals 1e-6 Score: 0/1 2. What is the solubility of silver chloride (K sp = 1.1 x 10 -10 ) in a solution of 0.10 M magnesium chloride? Student Response A. 5.5 x 10 -10 B. 1.1 x 10 -8 C. 3.0 x 10 -4 D. 1.0 x 10 -5 E. 1.1 x 10 -9 Score: 0/1 3.
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A solution is 0.10 M AgNO 3 and 0.20 M Ba(NO 3 ) 2 . If solid Na 2 SO 4 is added to the solution, what is [Ba 2+ ] when Ag 2 SO 4 begins to precipitate?(K sp BaSO 4 = 1.1 x 10 -10 ; Ag 2 SO 4 = 1.1 x 10 -5 ) Student Response A. 5.5 x 10 -10 B. 1.1 x 10 -5 C. 1.0 x 10 -3 D. 3.3 x 10 -3 E. 1.0 x 10 -7 Score: 1/1 4. Which of the following compounds will not have a different solubility with a change in pH? Student Response 1. AgNO 3 2. Ca 3 (AsO 4 ) 2 3. SrCO 3 4. CuF 5. CuS Score: 1/1 5. Which of the following processes does not have a positive value of delta S? Student Response A. AgCl(s) → Ag + (aq) + Cl - (aq)
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Student Response B. CO(g) at 25 °C and 2 atm → CO(g) at 25 °C and 1 atm C. O 2 (g) → O 2 (aq) D. C
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This note was uploaded on 11/25/2011 for the course CHEM 318 taught by Professor Rankin during the Spring '11 term at University of Texas at Austin.

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Chem 2 test 3 - ViewAttempt1of1 Title: Exam 3 Started:...

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