Problem 1 (Show your work for all parts of answer.) A student did an analysis for clomazone in soil with the following procedure. A. Shake 25 g of soil with 50 mL of water and 50 mL of ethyl acetate. Centrifuge and place 25 mL of the ethyl acetate layer in a calibrated test tube. Concentrate under a flow of nitrogen to exactly 10 ml. Inject 1 ul on GC/MS and record the chromatogram using only the mass at 204 mass units. В. C. D. E. When compared to a calibration curve obtained under the same analytical conditions, the concentration for the sample in step D was 0.09 ug/ml. You know the percent recovery for the procedure is 80%. F. la. What is the concentration of clomazone after concentrating to 10 mL under the flow of nitrogen (in step C)? 1b. What was the amount of clomazone after concentrating to 10 mL under the flow of nitrogen (in step C)? 1c. Before correcting for % recovery what was the amount of clomazone in the ethyl acetate extract in step A?

Problem 1 (Show your work for all parts of answer.) A student did an analysis for clomazone in soil with the following procedure. A. Shake 25 g of soil with 50 mL of water and 50 mL of ethyl acetate. Centrifuge and place 25 mL of the ethyl acetate layer in a calibrated test tube. Concentrate under a flow of nitrogen to exactly 10 ml. Inject 1 ul on GC/MS and record the chromatogram using only the mass at 204 mass units. В. C. D. E. When compared to a calibration curve obtained under the same analytical conditions, the concentration for the sample in step D was 0.09 ug/ml. You know the percent recovery for the procedure is 80%. F. la. What is the concentration of clomazone after concentrating to 10 mL under the flow of nitrogen (in step C)? 1b. What was the amount of clomazone after concentrating to 10 mL under the flow of nitrogen (in step C)? 1c. Before correcting for % recovery what was the amount of clomazone in the ethyl acetate extract in step A?

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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Not sure how to approach either question. Please help! Answer 1a,b Show all work please and typed format. Need asap, Thank you!
help me asap pls for number 4 less than 30 mins i'll give you an upvote later
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