Solvent-Solvent Extraction
Not what you're looking for?
Green Slime, an uncharged organic dye, is present in 600.0mL of water at an unknown concentration. The sample is extracted with 75.00mL of cyclohexane. After the extraction, the absorbance of the cyclohexane phase, measured at 635nm in a 1.00cm cell, is 0.870. The absorbance of a blank (pure cyclohexane) is 0.007. Using Beer's Law (A=ebC) you determined that the concentration of Green Slime in the cyclohexane after the extraction step is 1.26 x 10E-5 M. Calculate the concentration of Green Slime in the water PRIOR to the extraction step.
Molar absorptivitty (e635) of Green Slime in cyclohexane=68500 M-1 cm-1
Partition coefficient(K) of green slime between cyclohexane and water=32.
Purchase this Solution
Solution Summary
The solution is given in an attachment in a 250-300 word response with explanation and equations.
Purchase this Solution
Free BrainMass Quizzes
General Chemistry - Classification of Matter
This test will assess your knowledge on the classification of matter which includes elements, compounds and mixtures.
Organic Chemistry Naming: Alkanes
This is a quiz which is designed to assist students with learning the nomenclature used to identify organic compounds. This quiz focuses on the organic compounds called Alkanes.
Match Elements with their Symbols
Elements are provided: choose the matching one- or two-letter symbol for each element.
Thermochemistry
The quiz helps in revising basic concepts about thermochemistry.
Functional groups in Organic Chemistry
You will be tested on the names of functional groups in Organic Chemistry. It is very important to know the functional groups to understand Organic reactions.