Internal standard. A solution was prepared by mixing 5.00 mL of unknown element X with
Chapter 5, Problem 5-C(choose chapter or problem)
Internal standard. A solution was prepared by mixing 5.00 mL of unknown element X with 2.00 mL of solution containing 4.13 g of standard element S per milliliter, and diluting to 10.0 mL. The signal ratio in atomic absorption spectrometry was (signal from X)/ (signal from S) 0.808. In a separate experiment, with equal P concentrations of X and S, (signal from X)/(signal from S) 1.31. Find the concentration of X in the unknown.
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