I cant seem to understand how to finish the calculations on question 2 and 3. pl

Question

I cant seem to understand how to finish the calculations on question 2 and 3. plus everything ive seen for help shows a different answer for number 1. Any help is appreciated.

ost Lab Questions The pain reliever phenacetin is soluble in cold water 10 he extent of l.D8 and soluble in diethyl erher to the extent of 1.0 g 90 mL What is the distrib etin in these two solvents? Show your cal coefficient for diethyl e trer wafer lf 50 ma of n were dissolved in 100 ml. of water, how much w phenaceti extracted using one 100 mL portion of ether? Show your calculations. ether How much will be extracted using two 50 ml. portions of ether? Show What do the calculatiots indicate about how to optimize extraction of a com

Explanation / Answer

For question 2, we have .069=X/(0.05-X) or, 1.069X=0.00345(By cross multiplying) Thus X=0.00345/1.069=0.003227

For question 3, we have 0.069=2X/(0.05-X) or, 2.069X=0.00345 (By cross multiplying) Thus X=0.00345/2.069=0.001667

Calculation showing that for optimizing extraction less amount of solvent should be used for multiple times rather than extracting the compound single time with more solvent.

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