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 ic results of a preliminary run, which used a solution known to contain 1.37 mg/mL of methyl benzoate (peak A) and 1.51 mg/mL of butyl benzoate (peak B), are shown. The area of peak A is determined to be 301 and the area of peak B is determined to be 349 measured in arbitrary units by the computer. To measure the sample, 1.00 mL of a standard sample of butyl benzoate containing 2.41 mg/mL is mixed with 1.00 mL of the plant stream material. Analysis of the mixture gave a 10 Time (min) 15 peak area of 499 for peak A and 417 for peak B. What is the concentration of methyl benzoate in the plant stream? methyl benzoate concentration: mg/mL Detector Response

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 ic results of a preliminary run, which used a solution known to contain 1.37 mg/mL of methyl benzoate (peak A) and 1.51 mg/mL of butyl benzoate (peak B), are shown. The area of peak A is determined to be 301 and the area of peak B is determined to be 349 measured in arbitrary units by the computer. To measure the sample, 1.00 mL of a standard sample of butyl benzoate containing 2.41 mg/mL is mixed with 1.00 mL of the plant stream material. Analysis of the mixture gave a 10 Time (min) 15 peak area of 499 for peak A and 417 for peak B. What is the concentration of methyl benzoate in the plant stream? methyl benzoate concentration: mg/mL Detector Response

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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Question

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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
ic
results of a preliminary run, which used a solution known to contain 1.37 mg/mL of methyl
benzoate (peak A) and 1.51 mg/mL of butyl benzoate (peak B), are shown. The area of peak
A is determined to be 301 and the area of peak B is determined to be 349 measured in
arbitrary units by the computer.
To measure the sample, 1.00 mL of a standard sample of butyl benzoate containing 2.41
mg/mL is mixed with 1.00 mL of the plant stream material. Analysis of the mixture gave a
10
Time (min)
15
peak area of 499 for peak A and 417 for peak B.
What is the concentration of methyl benzoate in the plant stream?
methyl benzoate concentration:
mg/mL
Detector Response

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