Sample 1 Sample 2 Unknown CaCl2 solution code (if any) 2 1. Unknown Code = 2. Volume of 0.100 M Na3PO4 solution used 30 mL 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 6. Mass of filter paper 3६।। :356g Mass of filter paper + Ca3(PO4)2 precipitate 0.453g 0.3839 7. Mass of Ca3(PO4)2 precipitate recovered 0.072 9 8. 0.027 9. Moles of Ca3(PO4)2 recovered 0.000232 mel 0.0000 87l mol 10. Moles of CaCl2 consumed in reaction 0.000 696 mol 0.000261 mol 11. Molarity of unknown CaCl2 solution 0.0348 M 0.0131 12. Average Value for Molarity of Unknown CaCl2 solution 0.024
Sample 1 Sample 2 Unknown CaCl2 solution code (if any) 2 1. Unknown Code = 2. Volume of 0.100 M Na3PO4 solution used 30 mL 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 6. Mass of filter paper 3६।। :356g Mass of filter paper + Ca3(PO4)2 precipitate 0.453g 0.3839 7. Mass of Ca3(PO4)2 precipitate recovered 0.072 9 8. 0.027 9. Moles of Ca3(PO4)2 recovered 0.000232 mel 0.0000 87l mol 10. Moles of CaCl2 consumed in reaction 0.000 696 mol 0.000261 mol 11. Molarity of unknown CaCl2 solution 0.0348 M 0.0131 12. Average Value for Molarity of Unknown CaCl2 solution 0.024
Introductory Chemistry: A Foundation
9th Edition
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Donald J. DeCoste
Chapter15: Solutions
Section: Chapter Questions
Problem 88QAP
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