Organic Chemistry

posted by .

Water/methanol and water/acetone are viable solvent systems for recrystallization,but water/chloroform
and water/pentane are not. Briefly explain in 1-2 sentences.

  • Organic Chemistry -

    water/chloroform are not miscible.
    Did you mean pentanol. Water/pentane is liquid/gas.

  • Organic Chemistry -

    no its pentane

  • Organic Chemistry -

    Frankly I don't see how a liquid/gas mixture would be of help in recrystallization of a solid.

  • Organic Chemistry -

    Pentane boils at 35C or so; therefore, I suppose it is a liquid at room T but it isn't miscible with H2O.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Organic chemistry!!!Need helpp!!!

    1. Consider the effect of water concentration on rate of the reaction in water and acetone. WOuld you predict that the rate would be greater or less in the presence of a higher concentration of water?
  2. Organic chemistry!!!Need helpp!!!

    1. Consider the effect of water concentration on rate of the reaction in water and acetone. WOuld you predict that the rate would be greater or less in the presence of a higher concentration of water?
  3. o-chem

    Explain whether or not each of the following pairs of solvents might be useful as a solvent pair for recrystallization. (a) ethanol-methanol (b) hexane-cyclohexane (c) acetone-ethanol (d) water-ethanol (e) water-cyclohexane
  4. Organic Chemistry

    Explain whether or not each of the following pairs of solvents might be useful as a solvent pair for recrystallization. (a) ethanol-methanol (b) hexane-cyclohexane (c) acetone-ethanol (d) water-ethanol (e) water-cyclohexane
  5. chemistry

    what is the stereochemical formula for water, pentane, ethanol, acetone, and methanol. please help!
  6. organic chemistry

    which of the 3 solvent would not be suitable recrystallization solvent for acetanilide?
  7. organic chemistry

    chloroform is an excellent solvent for extraction caffeine from water. Kd = 10 for caffeine in chloroform- water at 25 Celsius. what weight of caffeine would be removed from a solution of 4g caffeine in 100ml water by a single extraction …
  8. organic chemistry lab

    chloroform is an excellent solvent for extraction caffeine from water. Kd = 10 for caffeine in chloroform- water at 25 Celsius. what weight of caffeine would be removed from a solution of 4g caffeine in 100ml water by a single extraction …
  9. chemistry

    Assume the density of aqueous HCl is the same as water (1.0 g/mL) and use the densities of ethanol (0.789 g/mL) and water as well as the actual amount of recrystallization solvent used to calculate the mass of recrystallization solvent.
  10. Organic Chemistry

    A 1.0 gram sample of aspirin will dissolve in 300 mL of water and in 17 mL of chloroform at 25 deg C. a. What is the solubility of aspirin in each solvent expressed in g/mL?

More Similar Questions