You have a stock solution certified by a manufacturer to contain 160.0 + 0.3 pg So,2-/mL. You would like to dilute it by a factor of 100 toobtain 1.600 pg/mL. Two possible methods of dilution are stated below. For each method, calculate the resulting uncertainty in concentration.Use manufacturer's tolerances in the Tolerances of Class A Volumetric Flasks table and Tolerances of ClassA Transfer Pipets table foruncertainties.(a) Dilute 10.00 mL up to 100 mL with a transfer pipet and volumetric flask. Then take 10.00 mL of the dilute solution and dilute it againto 100 mL.ug/mL(b) Dilute 1.000 mL up to 100 mL with a transfer pipet and volumetric flask.pg/mLExplain why one method is more precise than the other.Select- v is more precise because the uncertainty in the 10.00 mL transfer pipet is% and the uncertainty in the1.000 ml transfer pipet is%.

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a stock solu in 1.600 pg/mL. Two possible methods of dilution are stated below. For each method, calculate the resulting uncertainty in conc manufacturer's tolerances in the Tolerances of Class A Volumetric Flasks table and Tolerances of Class A Transfer Pipets table for ertainties. (a) Dilute 10.00 mL up to 100 ml with a transfer pipet and volumetric flask. Then take 10.00 mL of the dilute solution and d to 100 mL. 40 Ha/mL (b) Dilute 1.000 mL up to 100 mL with a transfer pipet and volumetric flask. pg/mL lain why one method is more precise than the other. 0.00

a stock solu in 1.600 pg/mL. Two possible methods of dilution are stated below. For each method, calculate the resulting uncertainty in conc manufacturer's tolerances in the Tolerances of Class A Volumetric Flasks table and Tolerances of Class A Transfer Pipets table for ertainties. (a) Dilute 10.00 mL up to 100 ml with a transfer pipet and volumetric flask. Then take 10.00 mL of the dilute solution and d to 100 mL. 40 Ha/mL (b) Dilute 1.000 mL up to 100 mL with a transfer pipet and volumetric flask. pg/mL lain why one method is more precise than the other. 0.00

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter33: Automated Methods Of Analysis

Section: Chapter Questions

Problem 33.8QAP

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