A solution was prepared by mixing 10.00 mL of a solution containing element X wi

Question

A solution was prepared by mixing 10.00 mL of a solution containing element X with 5.00 mL of a standard, whose concentration was 8.24 ?g / mL, and diluting to 50 mL. This solution was analyzed and the instrument response for the unknown was 1.69 times the signal due to the standard. In a separate experiment, it was found that for equal concentrations of element X and the standard, the response for element X was 0.930 times intense as the standard. What is the concentration of element X in the unknown expressed as ?g/mL.

Explanation / Answer

7.49

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