Question Paper code 9701/43/o/n/20 Question Number :1 Cambridge International Syllabus A level -

Cambridge International Syllabus A level - Chemistry Questions
Question Paper code 9701/43/o/n/20 Question Number : 1
The 50.0cm3 of water containing 0.935 g of ethanamide is then shaken with 100.0 cm3 of pure octan-1-ol under the same conditions. Calculate the mass of ethanamide that is dissolved in the 100.0 cm3 of octan-1-ol at equilibrium
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Water and octan-1-ol form two layers when mixed. Ethanamide is more soluble in water than it is in octan-1-ol. When 1.00 g of ethanamide is added to 50.0 cm3 of water and this is then shaken with 50.0 cm3 of octan-1-ol, it is found that the water layer contains 0.935 g of ethanamide at equilibrium.
(i)Calculate the partition coefficient Kpc , for ethanamide in water and octan-1-ol
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