a) Define what weight of compound Y would be removed from the original water solution in question c) by two extractions by means of 50mL of ether each time?
b) Define how you would separate a mixture of benzoic acid as well as benzophen one. Both compounds are insoluble in water as well as soluble in ether.
c) During an extraction a student loses track of which layer is the organic layer. Define how could she determine which layer is the aqueous phase?