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
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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
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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