Question

A solution containing 105 mg of compound C in 1.0 mL of water is to be extracted with CH2Cl2. The distribution coefficient
of C between CH2Cl2 and water is 1.5. Note that compound C is more soluble in CH2Cl2.

In Asolution containing 105 mg of compound C in 1.0 mL of water is to be extracted with CH2C12. The distribution coefficient of C between CH2Cl2 and water is 1.5. Note that compound C is more soluble in CH2Cl2. a) By showing detailed calculations for each extraction step, calculate the amount of C that will be extracted if 1.0 mL of the aqueous solution of compound C is shaken or extracted three times with 0.70 mL of CH2C2. i) Firstextraction with0.70 mLofCH2Ch. Second extraction with 0.70 mL ofCH2Cl. Thirdextractionwith0.70mL ofCH2Cl2

Part 4: Total amount of compound C removed from the aqueous solution after three 0.70 mL extractions with CH2Cl2.

Answer 1

dis tribution Coeffi cent - 1.5 conontr a ti on of Soluute in CHa cl of Solute in cwa tey Concentrah on () First ex trachon (let mass transfer red to x be the. CHac) 1.5 OS mI/1 mt. so tiun huo same he Ye Can be ta ken in Concentrati on iaking Should be in Yatio.Buo ase we units 1-5x o, x C105-x S1.3 mg Yemains in and 53.18moes to aqueous Solution mass transferred to CH an ex tya Chon, (let y be - 5 = (51.22-)m a6.335 mg a4.985 G. a 35 mg g oes to CHu and aqueous Solut'on semains in extyachon ( lat zbe mass transferred to (3) 3d ma/o.7 me Q4.93 5-2)mg/ Ime 12.117 mg goes to cHau> and l.187 ma water re mains in

ex trachens , lQ- 181 M after 3 even water emaung qa.813 mg 05 mg \R.181 mg So soluten from emoved agueons