Chemistryhelp pleasekeep getting part b wrong Copper was determined in a river water sample by atomic absorptionspectrometry and the method of standard additions. For the addition,300.0 μL of a 1000.0-µg/mL Cu standard was added to 200.0 mL ofsolution. The following data were obtained:Absorbance of reagent blank = 0.013Absorbance of sample = 0.457Absorbance of sample plus addition - blank = 1.014a Calculate the copper concentration in the sample.Concentration =1.2✓ µg/mLCorrectbLater studies showed that the reagent blank used to obtain the above-data was inadequate and that the actual blank absorbance was0.100. Find the copper concentration with the appropriate blank, anddetermine the error caused by using an improper blank.Concentrationug/mLError:=Submit=Correct%

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Copper was determined in a river water sample by atomic absorption spectrometry and the method of standard additions. For the addition, 300.0 µL of a 1000.0-µg/mL Cu standard was added to 200.0 mL of solution. The following data were obtained: Absorbance of reagent blank = 0.013 Absorbance of sample = 0.457 Absorbance of sample plus addition - blank a Calculate the copper concentration in the sample. ✓ µg/mL Concentration = Correct 1.2 Error M = 1.014 Correct 4 b Later studies showed that the reagent blank used to obtain the above data was inadequate and that the actual blank absorbance was 0.100. Find the copper concentration with the appropriate blank, and determine the error caused by using an improper blank. Concentration = ug/mL %

Copper was determined in a river water sample by atomic absorption spectrometry and the method of standard additions. For the addition, 300.0 µL of a 1000.0-µg/mL Cu standard was added to 200.0 mL of solution. The following data were obtained: Absorbance of reagent blank = 0.013 Absorbance of sample = 0.457 Absorbance of sample plus addition - blank a Calculate the copper concentration in the sample. ✓ µg/mL Concentration = Correct 1.2 Error M = 1.014 Correct 4 b Later studies showed that the reagent blank used to obtain the above data was inadequate and that the actual blank absorbance was 0.100. Find the copper concentration with the appropriate blank, and determine the error caused by using an improper blank. Concentration = ug/mL %

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter12: Spectrochemical Methods

Section: Chapter Questions

Problem 12P

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