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Consider the following data: Sample----------------------------A @455-----------

ID: 489289 • Letter: C

Question

Consider the following data:

Sample----------------------------A @455-------------------- A @490

10 ppm badger red ------------0.280------------------------- 0.550

10 ppm wolverine yellow ----0.800--------------------------0.150

Distilled Water-------------------0.000------------------------- 0.000

An unknown----------------------0.655------------------------- 0.400

Assume that all measurements were made in 1.20 cm cells. What is the concentration of badger red and wolverine yellow in the unknown? Give the values in ppm.

Explanation / Answer

absorbance is proportional to concentration

concentartion of badger in unknown is 10* 0.655/0.280 = 23.4 ppm

concentration of wolverine in unknown is 10 * 0,4/0.550 = 7.27 ppm

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