Attempt 4
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- Words: 346
- Pages: 2
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1 of 2
https://scholar.uh.edu/webct/urw/lc261766704.tp261766721/ViewStudent...
1. Chapter 11 S Ksp 4 At 25 o C the solubility of calcium carbonate is 9.33 x 10 -5 mol/L. Calculate the value of Ksp at this temperature. Give your answer in scientific notation to 2 SIGNIFICANT FIGURES (even though this is strictly incorrect).
Student Response 1. 8.7E-9
Value
Correct Answer
100%
Equals 8.7e-9 (100%)
General Ksp = S2 Feedback: Score:
1/1
2. S g to Ksp 1 The solubility of calcium sulfate at a given temperature is 0.00830 g/L. Calculate the Ksp at this temperature. Use E notation and give your answer to 3 significant figures.
Student Response
Value
Correct Answer
Answer
3.72E-9
100%
3.72E-9 (3.72 × 10-9 )
Score:
1/1
3. Chapter 11 Ksp S 38 What is the solubility in moles/liter for magnesium phosphate at 25 o C given a Ksp value of 5.2
x 10-24 . Write using scientific notation and use 1 or 2 decimal places (even though this is strictly incorrect!)
Student Response 1. 8.6E-6
Value
Correct Answer
100%
Equals 8.64e-6 (100%) Equals 8.6e-6 (100%)
General Ksp = 108S5 Feedback: Score:
1/1
4. Chapter 11 Common Ion Effect 6
4/15/2009 10:52 PM
View Attempt
2 of 2
https://scholar.uh.edu/webct/urw/lc261766704.tp261766721/ViewStudent...
The Ksp of AgCl is 1.6 x 10-10. What is the solubility of AgCl in 0.0010 M KCl? Give your answer using scientific notation and to 2 significant figures (i.e., one decimal place).
Student Response 1. 1.6E-7 Score:
Value
Correct Answer
100%
Equals 1.6e-7 (100%)
1/1
5. pH Solubility 3 Which of the following compounds will have a different solubility with a change in pH?
Student Value Response 1. AgI
0%
2. PbCl2
0%
3. BaCrO4
100%
4. CuBr
0%
5. Hg2 I2
0%
Score:
Correct Answer Feedback
1/1
6. Precipitate 2 When 0.075 g of KOH is dissolved in 1.00 L of 1.0 x 10 -3 M Cu(NO3 )2 , a precipitate of Cu(OH)2 is formed. True or False? (Ksp of Cu(OH)2 is 2.2 x 10-20)
Student Value Response 1. True
100%
2. False
0%
Score:
Correct Answer Feedback
1/1
Done
4/15/2009 10:52 PM
1 of 2
https://scholar.uh.edu/webct/urw/lc261766704.tp261766721/ViewStudent...
1. Chapter 11 S Ksp 4 At 25 o C the solubility of calcium carbonate is 9.33 x 10 -5 mol/L. Calculate the value of Ksp at this temperature. Give your answer in scientific notation to 2 SIGNIFICANT FIGURES (even though this is strictly incorrect).
Student Response 1. 8.7E-9
Value
Correct Answer
100%
Equals 8.7e-9 (100%)
General Ksp = S2 Feedback: Score:
1/1
2. S g to Ksp 1 The solubility of calcium sulfate at a given temperature is 0.00830 g/L. Calculate the Ksp at this temperature. Use E notation and give your answer to 3 significant figures.
Student Response
Value
Correct Answer
Answer
3.72E-9
100%
3.72E-9 (3.72 × 10-9 )
Score:
1/1
3. Chapter 11 Ksp S 38 What is the solubility in moles/liter for magnesium phosphate at 25 o C given a Ksp value of 5.2
x 10-24 . Write using scientific notation and use 1 or 2 decimal places (even though this is strictly incorrect!)
Student Response 1. 8.6E-6
Value
Correct Answer
100%
Equals 8.64e-6 (100%) Equals 8.6e-6 (100%)
General Ksp = 108S5 Feedback: Score:
1/1
4. Chapter 11 Common Ion Effect 6
4/15/2009 10:52 PM
View Attempt
2 of 2
https://scholar.uh.edu/webct/urw/lc261766704.tp261766721/ViewStudent...
The Ksp of AgCl is 1.6 x 10-10. What is the solubility of AgCl in 0.0010 M KCl? Give your answer using scientific notation and to 2 significant figures (i.e., one decimal place).
Student Response 1. 1.6E-7 Score:
Value
Correct Answer
100%
Equals 1.6e-7 (100%)
1/1
5. pH Solubility 3 Which of the following compounds will have a different solubility with a change in pH?
Student Value Response 1. AgI
0%
2. PbCl2
0%
3. BaCrO4
100%
4. CuBr
0%
5. Hg2 I2
0%
Score:
Correct Answer Feedback
1/1
6. Precipitate 2 When 0.075 g of KOH is dissolved in 1.00 L of 1.0 x 10 -3 M Cu(NO3 )2 , a precipitate of Cu(OH)2 is formed. True or False? (Ksp of Cu(OH)2 is 2.2 x 10-20)
Student Value Response 1. True
100%
2. False
0%
Score:
Correct Answer Feedback
1/1
Done
4/15/2009 10:52 PM
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