Assume that the distribution coefficient for compound X between chloroform and water is 2.8. If 50 mL of water that is initially 0.1 M in X is extracted with three 25-mL portions of chloroform: a) What if the final concentration of X remaining in the aqueous phase?
b) How many millimoles of X remain in the aqueous phase?
c) If X has a MW of 156, how many grams remain in the aqueous phase?
d) If instead of using 25-mL portions of chloroform, one 75-mL portion has been used, how much of the solute would remain in the aqueous phase?
e) What can you conclude about the desirability of using one large portion or several small portions of solvent for extractions?

pla·gia·rism

/ˈplājəˌrizəm/

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noun

the practice of taking someone else's work or ideas and passing them off as one's own.

explanation:

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.