Calculate the volume of water in ltrs

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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Calculate the volume of water in ltrs
A solution of picric acid in benzene contains 40 grams of picric acid per
litre. Calculate the volume of water in litres with which 2 litre of this solution must be shaken
at 291 K (18° C) to reduce the picric acid concentration to 5 g/l in the benzene phase.
Molecular weight of picric acid is 229, and the distribution coefficient K is given by
K = C/CR = 0.548.
where,
CR = concentration of picric acid in water, mol/l
CE
= concentration of picric acid in benzene, mol/l
Transcribed Image Text:A solution of picric acid in benzene contains 40 grams of picric acid per litre. Calculate the volume of water in litres with which 2 litre of this solution must be shaken at 291 K (18° C) to reduce the picric acid concentration to 5 g/l in the benzene phase. Molecular weight of picric acid is 229, and the distribution coefficient K is given by K = C/CR = 0.548. where, CR = concentration of picric acid in water, mol/l CE = concentration of picric acid in benzene, mol/l
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