What is the concentration of salicylate in mg/dL in an unknown salicylate solution whose absorbance is 0.310? (Give your answer to 2 decimal places) Salicylate solution concentration (mg/dL) 1.00 2.00 3.00 4.00 5.00 Absorbance at 528 nm 0.162 0.223 0.262 0.359 0.401

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You are assigned to measure the amount of salicylic acid in a wart remover solution. Salicylate ion
reacts with an Fe³+ ion to form a complex ion that strongly absorbs light at 528 nm. You prepare
standard solutions of known salicylate concentration. You add 5.00 mL of 0.025 M FeCl3 to each
standard solution and dilute each solution to a total of 10.00 mL. The concentration of salicylate in
each solution is given in the table below. You then measure the absorbance of each standard
solution. The data are shown below.
What is the concentration of salicylate in mg/dL in an unknown salicylate solution whose
absorbance is 0.310? (Give your answer to 2 decimal places)
Salicylate solution concentration
(mg/dL)
1.00
2.00
3.00
4.00
5.00
Absorbance at 528
nm
0.162
0.223
0.262
0.359
0.401
Transcribed Image Text:You are assigned to measure the amount of salicylic acid in a wart remover solution. Salicylate ion reacts with an Fe³+ ion to form a complex ion that strongly absorbs light at 528 nm. You prepare standard solutions of known salicylate concentration. You add 5.00 mL of 0.025 M FeCl3 to each standard solution and dilute each solution to a total of 10.00 mL. The concentration of salicylate in each solution is given in the table below. You then measure the absorbance of each standard solution. The data are shown below. What is the concentration of salicylate in mg/dL in an unknown salicylate solution whose absorbance is 0.310? (Give your answer to 2 decimal places) Salicylate solution concentration (mg/dL) 1.00 2.00 3.00 4.00 5.00 Absorbance at 528 nm 0.162 0.223 0.262 0.359 0.401
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