2. Virtual Lab Question: Phosphorus in urine can be determined by treating with molybdenum (VI) and then reducing the phosphomolybdo complex with aminonaphtholsulfonic acid to give the characteristic molybdenum blue color. This absorbs at 690 nm. A patient excreted 1270 mL of urine in 24 hours and the pH of the urine was 6.5. A 1.00 mL aliquot of the urine was treated with molybdate reagent and aminonaphtholsulfonic acid and was diluted to a volume of 50.0 mL. A series of phosphate standards were similarly treated. The absorbance of the solutions at 690 nm, measured against a blank, were as follows: Solution Absorbance a. Calculate the number of grams of phosphorus excreted per day. 1.00 ppm P 0.205 b. Calculate the phosphorus concentration in the urine 2.00 ppm P 0.41 as millimoles per liter.

2. Virtual Lab Question: Phosphorus in urine can be determined by treating with molybdenum (VI) and then reducing the phosphomolybdo complex with aminonaphtholsulfonic acid to give the characteristic molybdenum blue color. This absorbs at 690 nm. A patient excreted 1270 mL of urine in 24 hours and the pH of the urine was 6.5. A 1.00 mL aliquot of the urine was treated with molybdate reagent and aminonaphtholsulfonic acid and was diluted to a volume of 50.0 mL. A series of phosphate standards were similarly treated. The absorbance of the solutions at 690 nm, measured against a blank, were as follows: Solution Absorbance a. Calculate the number of grams of phosphorus excreted per day. 1.00 ppm P 0.205 b. Calculate the phosphorus concentration in the urine 2.00 ppm P 0.41 as millimoles per liter.

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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