A scientist wishes to measure the concentration of methyl benzoate in a plant stream by gas chromatography. He prepares a sample of butyl benzoate to use as an internal standard. The results of a preliminary run, which used a solution known to contain 1.31 mg/mL of methyl benzoate (peak A) and 1.44 mg/mL of butyl benzoate (peak B), are shown. The area of peak A is determined to be 352 and the area of peak B is determined to be 395 measured in arbitrary units by the computer. To measure the sample, 1.00 mL of a standard sample of butyl benzoate containing 2.21 mg/ml. is mixed with 1.00 mL of the plant stream material. Analysis of the mixture gave a peak area of 473 for peak A and 421 for peak B. What is the concentration of methyl benzoate in the plant stream? Detector Response 10 Time (min) 5 15

A scientist wishes to measure the concentration of methyl benzoate in a plant stream by gas chromatography. He prepares a sample of butyl benzoate to use as an internal standard. The results of a preliminary run, which used a solution known to contain 1.31 mg/mL of methyl benzoate (peak A) and 1.44 mg/mL of butyl benzoate (peak B), are shown. The area of peak A is determined to be 352 and the area of peak B is determined to be 395 measured in arbitrary units by the computer. To measure the sample, 1.00 mL of a standard sample of butyl benzoate containing 2.21 mg/ml. is mixed with 1.00 mL of the plant stream material. Analysis of the mixture gave a peak area of 473 for peak A and 421 for peak B. What is the concentration of methyl benzoate in the plant stream? Detector Response 10 Time (min) 5 15

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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