The digestion of a 0.1432 g sample of a compound containing phosphorous in a mixture of HNO3and H2SO, resulted in the formation of CO2, H2O and H3PO4 Addition of ammonium molybdateyielded a solid having the composition (NH)3PO, 12M0O3 (MW=1876.3 g/mol). This precipitatewas filtered washed, and dissolved in 50 00 mL of 0.2000 M NaOH:(NH,)3PO4-12MO03(s)+ 26OH (aq)HPO,2 (aq) +12M00,2 (aq) +14H2O(1) + 3NH3(g)After the solution was boiled to remove NH3, the excess NaOH was titrated with 14.71mL of 0.1741M HCI to a phenolphthalein end point (back titration). Calculate the percentage of phosphorousin the solid sample.6.19%10.6%O 27.6%O0 238%O 19.5

Given: Mass of sample = 0.1432 g. Volume of NaOH added = 50.00 mL = 0.050 L…

The digestion of a 0 1432 g sample of a compound containing phosphorous in a mixture of HNO3 and H2SO, resulted in the formation of CO, H20 and H3P04 Addition of ammonium molybdate yielded a solid having the composition (NH)3PO4 12M0O3 (MW=1876.3 g/mol). This precipitate was filtered, washed, and dissolved in 50.00 mL of 0 2000 M NaOH: (NH4)3PO4-12Mo03(s)+ 26OH (aq) HPO,2 (aq) +12M0O,2 (aq) +14H20(1) + 3NH3(g) After the solution was boiled to remove NH the excess NaOH was titrated with 14.71mL of 0.1741 M HCI to a phenolphthalein end point (back titration). Calculate the percentage of phosphorous in the solid sample. O 6.19% 10.6% O 27.6% 0.238% O 19.5

The digestion of a 0 1432 g sample of a compound containing phosphorous in a mixture of HNO3 and H2SO, resulted in the formation of CO, H20 and H3P04 Addition of ammonium molybdate yielded a solid having the composition (NH)3PO4 12M0O3 (MW=1876.3 g/mol). This precipitate was filtered, washed, and dissolved in 50.00 mL of 0 2000 M NaOH: (NH4)3PO4-12Mo03(s)+ 26OH (aq) HPO,2 (aq) +12M0O,2 (aq) +14H20(1) + 3NH3(g) After the solution was boiled to remove NH the excess NaOH was titrated with 14.71mL of 0.1741 M HCI to a phenolphthalein end point (back titration). Calculate the percentage of phosphorous in the solid sample. O 6.19% 10.6% O 27.6% 0.238% O 19.5

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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