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1 2 3 TEST TUBE 4 5 Blank Unknown solution Volume 0.52 M Fe₂(SO4)3 1.00 mL 2.00 mL 3.00 mL 4.00 mL 5.00 mL 0.00 mL Volume distilled H₂O 9.00 mL 8.00 mL 7.00 mL 6.00 mL 5.00 mL 10.00 mL Initial Absorbance 0.507 0.555 0.609 0.697 0.732 0.123 0.656 Corrected Absorbance 0.384 0.432 0.486 0.574 0.609 0.533

1 2 3 TEST TUBE 4 5 Blank Unknown solution Volume 0.52 M Fe₂(SO4)3 1.00 mL 2.00 mL 3.00 mL 4.00 mL 5.00 mL 0.00 mL Volume distilled H₂O 9.00 mL 8.00 mL 7.00 mL 6.00 mL 5.00 mL 10.00 mL Initial Absorbance 0.507 0.555 0.609 0.697 0.732 0.123 0.656 Corrected Absorbance 0.384 0.432 0.486 0.574 0.609 0.533

Chemistry: Matter and Change
Chemistry: Matter and Change
1st Edition
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Chapter14: Mixtures And Solutions
Section: Chapter Questions
Problem 93A
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Maria was tasked to determine the concentration of a Fe2(SO4)3 solution. She prepared 5 different standards of Fe2(SO4)3 using the table below as her guide. She ran the standards and the unknown solution through UV-VIS spectroscopy and recorded the absorbances of each solution.

What is the slope of the line of the standard curve from the given data?

0.3194
   

1.1385
   

0.3217
   

2.131
TEST TUBE 1 2 3 4 5 Blank Unknown solution Volume 0.52 M Fe₂(SO4)3 1.00 mL 2.00 mL 3.00 mL 4.00 mL 5.00 mL 0.00 mL Volume distilled H₂O 9.00 mL 8.00 mL 7.00 mL 6.00 mL 5.00 mL 10.00 mL Initial Absorbance 0.507 0.555 0.609 0.697 0.732 0.123 0.656 Corrected Absorbance 0.384 0.432 0.486 0.574 0.609 0.533
Transcribed Image Text:TEST TUBE 1 2 3 4 5 Blank Unknown solution Volume 0.52 M Fe₂(SO4)3 1.00 mL 2.00 mL 3.00 mL 4.00 mL 5.00 mL 0.00 mL Volume distilled H₂O 9.00 mL 8.00 mL 7.00 mL 6.00 mL 5.00 mL 10.00 mL Initial Absorbance 0.507 0.555 0.609 0.697 0.732 0.123 0.656 Corrected Absorbance 0.384 0.432 0.486 0.574 0.609 0.533
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