Suppose compound X has a solubility of 20.0g per 100mL in ether and 12.1g per 100mL...
Suppose compound X has a solubility of 20.0g per 100mL in ether and 12.1g per 100mL is water. In all cases, explain your reasoning and show your work clearly (i.e. show the equation(s) you are using, the values you plug in, and the final answers, BUT you don't need to show all the algebraic steps.)
a. Determine the partition coefficient k.
b. What mass of compound X will you retrieve when an aqueous solution containing 30.0g of X in 300.mL of solution is extracted with three 100-mL portions of ether?
c. What mass of compound X would you have retrieved had you extracted the solution described in b. with one 300-mL portion of ether
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Suppose compound X has a solubility of 20.0g per 100mL in ether
and 12.1g per 100mL...
Assume an organic compound has a partition coefficient between water and ether equal to 8.48. If...
Assume an organic compound has a partition coefficient between water and ether equal to 8.48. If there are initially 7.52 grams of the compound dissolved in 70.0 mL of water, how many grams will remain in the aqueous layer after extraction with two 25.0 mL portions of ether? Mass: ________ g
Extractions rely on differences in solubility of the components that are being separated
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An unknown compound X is one of the three compounds listed in the table below. A mixture of X with trans-cinnamic acid melts from 126-130°C, a mixture of X with decanedioic acid melts from 131-132°C, and a mixture of X with 2-furancarboxylic acid melts from 121-133°C. Give the identity of X and explain your reasoning. Type your answer in the box given below. Compound m.p... °C decanedioic acid 131-133 trans-cinnamic acid 132-135 2-furancarboxylic acid 132-134 You are fractionally...
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Introduction: Pre-lab Questions Turn in typed responses in the beginning of lab. Answer in complete sentences. Show your work in pen where applicable. 1. What other compounds are extracted along with caffeine into the tea? Use what you know about the relative polarity of the functional groups within these compounds to determine the final destination of the following compounds: cellulose, tannins, chlorophylls, sodium carbonate. Do the majority of these compounds end up in the tea bag, filtered solid, aqueous layer,...
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Isolation of Caffeine 1. Suppose that in the laboratory preparation of malononitrile, CH.C(CN), the reaction mixture, when diluted with water, afforded 300 mL of an aqueous solution of 30 g of the reaction product malononi- trile, CH2(CN), which is to be isolated by extraction with ether. The solubility of malononitrile in ether at room temperature is 20.0 g per 100 ml: in water it is 13.3 g per 100 mL. What weight of Ile would be recovered by extraction with...
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An unknown compound X is one of the three compounds listed in the table below. A mixture of X with trans-cinnamic acid melts from 126-130°C, a mixture of X with decanedioic acid melts from 131-132°C, and a mixture of X with 2-furancarboxylic acid melts from 121-133°C. Give the identity of X and explain your reasoning. Type your answer in the box given below. Compound m.p... °C decanedioic acid 131-133 trans-cinnamic acid 132-135 2-furancarboxylic acid 132-134 You are fractionally...
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