During an assay of paracetamol by UV an analyst prepares a series of calibration solutions containing approximately 3-15 mcg/mL paracetamol as follows: • 141.7 mg of pure paracetamol was added to a 200 mL volumetric flask. • 0.1 M NaOH (50 mL) was added, the mixture well shaken and made up to volume with deionized water • 10 mL of the above solution was diluted to 100 mL a) What is the concentration of the final diluted solution in mcg/mL? Answer = mcg/mL (1 decimal) b) What volume of the diluted solution is required to prepare 100 mL of a 11 mcg/mL standard solution? Answer = mL (1 decimal) 33

During an assay of paracetamol by UV an analyst prepares a series of calibration solutions containing approximately 3-15 mcg/mL paracetamol as follows: • 141.7 mg of pure paracetamol was added to a 200 mL volumetric flask. • 0.1 M NaOH (50 mL) was added, the mixture well shaken and made up to volume with deionized water • 10 mL of the above solution was diluted to 100 mL a) What is the concentration of the final diluted solution in mcg/mL? Answer = mcg/mL (1 decimal) b) What volume of the diluted solution is required to prepare 100 mL of a 11 mcg/mL standard solution? Answer = mL (1 decimal) 33

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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