How many grams of Na3PO4 in solution in excess after the reaction 1s 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.

Chemistry
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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 1s 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.

2.
Volume of 0,100 M Na3PO4 solution used
30 mL
30ML
3.
Initial burette volume of CaCl2 solution
.6 mL
20.6
20.6 m L
40.6 mL
4.
Final burette volume of CaCl2 solution
20 mL
20 mL
Volume of unknown CaCl2 solution used
Mass of filter paper
.381 g
356 g
.453 g
.383 9
Mass of filter paper + Ca3(PO4)2 precipitate
.072 9
.027 9
Mass of Ca3(PO4)2 precipitate recovered
000232 mol
0000 871 mol
Moles of Ca3(PO4)2 recovered
000261 mol
.000696 mol
Moles of CaCl2 consumed in reaction
.0348 M
,01305
,013 05 M
Molarity of unknown CaCl2 solution
0239 M
%3D
Average Value for Molarity of Unknown CaCl2 solution
Transcribed Image Text:2. Volume of 0,100 M Na3PO4 solution used 30 mL 30ML 3. Initial burette volume of CaCl2 solution .6 mL 20.6 20.6 m L 40.6 mL 4. Final burette volume of CaCl2 solution 20 mL 20 mL Volume of unknown CaCl2 solution used Mass of filter paper .381 g 356 g .453 g .383 9 Mass of filter paper + Ca3(PO4)2 precipitate .072 9 .027 9 Mass of Ca3(PO4)2 precipitate recovered 000232 mol 0000 871 mol Moles of Ca3(PO4)2 recovered 000261 mol .000696 mol Moles of CaCl2 consumed in reaction .0348 M ,01305 ,013 05 M Molarity of unknown CaCl2 solution 0239 M %3D Average Value for Molarity of Unknown CaCl2 solution
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