A calibration curve for the colorimetric determination of phosphorous in urine is prepared by reacting standard solutions of phosphate with molybdenum(VI) and reducing the phosphomolybdic acid complex to produce the characteristic blue color. The measured absorbance A is plotted against the concentration of phosphorus. From the following data, determine the linear least-squares equation and calculate ppm P in the urine sample: ppm P A 1.00 0.205 2.00 0.410 3.00 0.615 4.00 0.820 Urine sample 0.625

A calibration curve for the colorimetric determination of phosphorous in urine is prepared by reacting standard solutions of phosphate with molybdenum(VI) and reducing the phosphomolybdic acid complex to produce the characteristic blue color. The measured absorbance A is plotted against the concentration of phosphorus. From the following data, determine the linear least-squares equation and calculate ppm P in the urine sample: ppm P A 1.00 0.205 2.00 0.410 3.00 0.615 4.00 0.820 Urine sample 0.625

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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