25.0 g of an impure sample containing cobalt was dissolved in acid and diluted to 1000.00 mL. 6.00 mL of this sample was removed, treated appropriately to give a colored solution, and then diluted to 250.00 mL. This final solution had an absorbance of 0.410. Calculate the percentage of cobalt (MW = 58.93 g/mol) in the original sample.
25.0 g of an impure sample containing cobalt was dissolved in acid and diluted to 1000.00 mL. 6.00 mL of this sample was removed, treated appropriately to give a colored solution, and then diluted to 250.00 mL. This final solution had an absorbance of 0.410. Calculate the percentage of cobalt (MW = 58.93 g/mol) in the original sample.
Introductory Chemistry: A Foundation
9th Edition
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Donald J. DeCoste
Chapter15: Solutions
Section: Chapter Questions
Problem 1CR
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25.0 g of an impure sample containing cobalt was dissolved in acid and diluted to
1000.00 mL. 6.00 mL of this sample was removed, treated appropriately to give a colored
solution, and then diluted to 250.00 mL. This final solution had an absorbance of 0.410.
Calculate the percentage of cobalt (MW = 58.93 g/mol) in the original sample.
![0.5
0.45
0.4
0.35
0.3
A 0.25
0.2
0.15
0.1
0.05
0.05
0.1
0.15
0.2
[Co], M](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff11f5732-544d-4f9d-ae9e-a4d09f5aec33%2F8fd775fe-3b5c-413a-a8be-1dbef826d8a5%2Feiubp0i_processed.png&w=3840&q=75)
Transcribed Image Text:0.5
0.45
0.4
0.35
0.3
A 0.25
0.2
0.15
0.1
0.05
0.05
0.1
0.15
0.2
[Co], M
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