Question

20. Determine the percent transmittance where the sample's concentration is 7.83 x 104 M. The standard concentration is 3.25 x 103 M with an absorbance of 0.602 and pathlength of 2.00 cm. (Show work) 4 pts) 21. The distribution ratio of a sample is 25.5 between water and ethyl acetate. Suppose that 90.0 mL of water is extracted with 55.7 mL of ethyl acetate. What fraction of the sample remains in aqueous phase (phase 1) for the fourth extractions? What fraction is in phase 2 for the second extraction?(Show work) (5 pts) Bonus: Name the abbreviation for ICP and give four characteristics of why ICP is used for elemental analysis. (5 pts) Note: Must answer all correctly to receive credit!

Answer 1

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