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Sample 1 Sample 2 Unknown CaCl2 solution code (if any) 2 1. Unknown Code = 2. Volume of 0.100 M Na3PO4 solution used 30mL 30ML 3. Initial burette volume of CaCl2 solution 0.6 mL 20.6 4. Final burette volume of CaCl2 solution 20.6 mL 40.6 mL 5. Volume of unknown CaCl2 solution used 20 mL 20 mL Mass of filter paper D.381 g 6. 0.356 Mass of filter paper + Ca3(PO4)2 precipitate 0.453 g 0.383g 7. 8. Mass of Ca3(PO4)2 precipitate recovered 0.072 0.027 9. Moles of Ca3(P04)2 recovered 0.000232 mel 0.0000 87 l mol 10. Moles of CaCl2 consumed in reaction 0.000696 mol 0,000261 mol 11. Molarity of unknown CaCl2 solution 0.0348 M O.0131 12. Average Value for Molarity of Unknown CaCl2 solution 0.024 %3D

Sample 1 Sample 2 Unknown CaCl2 solution code (if any) 2 1. Unknown Code = 2. Volume of 0.100 M Na3PO4 solution used 30mL 30ML 3. Initial burette volume of CaCl2 solution 0.6 mL 20.6 4. Final burette volume of CaCl2 solution 20.6 mL 40.6 mL 5. Volume of unknown CaCl2 solution used 20 mL 20 mL Mass of filter paper D.381 g 6. 0.356 Mass of filter paper + Ca3(PO4)2 precipitate 0.453 g 0.383g 7. 8. Mass of Ca3(PO4)2 precipitate recovered 0.072 0.027 9. Moles of Ca3(P04)2 recovered 0.000232 mel 0.0000 87 l mol 10. Moles of CaCl2 consumed in reaction 0.000696 mol 0,000261 mol 11. Molarity of unknown CaCl2 solution 0.0348 M O.0131 12. Average Value for Molarity of Unknown CaCl2 solution 0.024 %3D

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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How many grams of Na3PO4 in solution in excess after the reaction is complete?
Hint - determine moles you started with and subtract moles that were consumed in the
reaction to get moles remaining in solution then convert to grams

Sample 1 Sample 2 Unknown CaCl2 solution code (if any) Unknown Code = _2 %3D 1. 2. Volume of 0.100 M Na3PO4 solution used 30 mL 30ML 3. Initial burette volume of CaCl2 solution 0.6 m L 20.6 4. Final burette volume of CaCl2 solution 20.6 mL 40.6 mL 5. Volume of unknown CaCl2 solution used 20 mL 20 mL 6. Mass of filter paper Do381 g 0:356 q 7. Mass of filter paper + Ca3(PO4)2 precipitate 0.453 q 0.3839 .३६३ 8. Mass of Ca3(PO4)2 precipitate recovered O.072 0. 027 a 9. Moles of Ca3(P04)2 recovered O. 000232 mel 0.0000 871 mol 10. Moles of CaCl2 consumed in reaction 0.000 696 mol 0,000261 mol Molarity of unknown CaCl2 solution 0.0348 M 0.0131 11. 12. Average Value for Molarity of Unknown CaCl2 solution 0.024
Transcribed Image Text:Sample 1 Sample 2 Unknown CaCl2 solution code (if any) Unknown Code = _2 %3D 1. 2. Volume of 0.100 M Na3PO4 solution used 30 mL 30ML 3. Initial burette volume of CaCl2 solution 0.6 m L 20.6 4. Final burette volume of CaCl2 solution 20.6 mL 40.6 mL 5. Volume of unknown CaCl2 solution used 20 mL 20 mL 6. Mass of filter paper Do381 g 0:356 q 7. Mass of filter paper + Ca3(PO4)2 precipitate 0.453 q 0.3839 .३६३ 8. Mass of Ca3(PO4)2 precipitate recovered O.072 0. 027 a 9. Moles of Ca3(P04)2 recovered O. 000232 mel 0.0000 871 mol 10. Moles of CaCl2 consumed in reaction 0.000 696 mol 0,000261 mol Molarity of unknown CaCl2 solution 0.0348 M 0.0131 11. 12. Average Value for Molarity of Unknown CaCl2 solution 0.024
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