in a standard addition calibration method, 50.0 ml volumetric flasks were used. A 5.0 ml aliquot of a solution containing penobarbital was put in each. The solutions were made basic with KOH and mixed with different increments of 2.0 ppm standard penobarbital. The volumes were adjusted to 50,0 ml and absorbances were measured as follows Volume added (ml) 0.00 0.50 1.00 1.50 2.00 Absorbance 0.33 0.48 0.64 0.80 0.96 Calculate the concentration of phenobarbital in the unknown (Use graphical or numerical solutions)

in a standard addition calibration method, 50.0 ml volumetric flasks were used. A 5.0 ml aliquot of a solution containing penobarbital was put in each. The solutions were made basic with KOH and mixed with different increments of 2.0 ppm standard penobarbital. The volumes were adjusted to 50,0 ml and absorbances were measured as follows Volume added (ml) 0.00 0.50 1.00 1.50 2.00 Absorbance 0.33 0.48 0.64 0.80 0.96 Calculate the concentration of phenobarbital in the unknown (Use graphical or numerical solutions)

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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