A researcher is attempting to separate a terpene (aromatic compound) present in an aqueous solution. The...
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A researcher is attempting to separate a terpene (aromatic compound) present in an aqueous solution. The partition coefficient of that terpene at a particular pH in a chloroform-water mixture is 0.65. A solution that contains 5.2 g of the terpene in 100 mL of water was shaken successively with two 55 mL portions of chloroform. (i) Calculate the total mass of the terpene obtained after both extractions. (7 marks) (ii) Given that the molecular mass of the terpene is 406.5 g/mol, calculate the molar concentration of the terpene in the aqueous layer after both extractions. (3 marks) A researcher is attempting to separate a terpene (aromatic compound) present in an aqueous solution. The partition coefficient of that terpene at a particular pH in a chloroform-water mixture is 0.65. A solution that contains 5.2 g of the terpene in 100 mL of water was shaken successively with two 55 mL portions of chloroform. (i) Calculate the total mass of the terpene obtained after both extractions. (7 marks) (ii) Given that the molecular mass of the terpene is 406.5 g/mol, calculate the molar concentration of the terpene in the aqueous layer after both extractions. (3 marks)
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