Explain pipetted into separatory funnels

Reference no: EM13238107

The volumes of a solution containing 1.10ppm Zn+2 shown in the table below were pipetted into separatory funnels, each containing 5.00mL of an unknown zinc solution. Each was extracted with three 5-mL aliquots of CCl4 containing an excess of 8-hydroxyquinoline. The extracts were diluted to 25 mL and their fluorescence was measured. What is the concentration of the zinc in the unknown solution?

Volume of Zn standard(mL) Florescence Reading

0 6.12

4 11.16

8 15.68

12 20.64

20 30.76

Reference no: EM13238107

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