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.
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.
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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Question
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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](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9b0e7686-0c0d-4eba-ac81-54e736b47f2f%2Fa4c3ca1f-bc73-418b-b808-15125ffad5a0%2Fckzmbrx_processed.jpeg&w=3840&q=75)
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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