Consider 15 mL of an aqueous solution containing 2.0 g of an organic solute.If the distribution...
Consider 15 mL of an aqueous solution containing 2.0 g of an organic solute.If the distribution coefficient for the solute between ether and water is 20, calculate the percent of the compound that can be recovered with a single extraction with 26.8 mL of ether. (2 sig figs)
Homework Answers
The percent of the compound that can be recovered with a single extraction = 97 %
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Consider 15 mL of an aqueous solution containing 2.0 g of an
organic solute.If the distribution...
A solution containing 105 mg of compound C in 1.0 mL of water is to be extracted with CH2Cl2. The distribution coefficie...
A solution containing 105 mg of compound C in 1.0 mL of water is
to be extracted with CH2Cl2. The distribution coefficient
of C between CH2Cl2 and water is 1.5. Note that compound C is more
soluble in CH2Cl2.
Part 4: Total amount of compound C removed from the aqueous
solution after three 0.70 mL extractions with CH2Cl2.
In Asolution containing 105 mg of compound C in 1.0 mL of water is to be extracted with CH2C12. The distribution coefficient...
5) A 100.0 mL aqueous solution containing 2.50 g of compound Z results is extracted with...
5) A 100.0 mL aqueous solution containing 2.50 g of compound Z results is extracted with 25.0 mL of ethyl acetate. The ethyl acetate is evaporated to yield 0.95 g of compound Z. 4 points Calculate the partition coefficient (also known as the distribution coefficient) K, for compound Z in ethyl acetate and water, where K = (concentration of Z in diethyl ether) + (concentration of Z in water): Calculations Answer
An aqueous solution containing 5.00 g of solute X in 100. mL is extracted five times...
An aqueous solution containing 5.00 g of solute X in 100. mL is extracted five times with 25.0 mL portions of organic solvent A each. What is the total amount of solute X that will be extracted by the solvent A. Given Ksolvent A/water = 3.75
Extractions rely on differences in solubility of the components that are being separated
Extractions rely on differences in solubility of the components that are being separated. The amount of a material that will transfer into the solvent in an extraction can be calculated using a partition coefficient. This is a ratio of the solubility of the material in each solvent that can be used to predict outcomes of extractions. A certain organic compound, Z, has the distribution coefficient (partition coefficient), Kp = 10.45 when partitioned between ether and water. Therefore, the equation used...
The extraction of 8.0 g of a particular organic compound dissolved in 100 ml of water...
The extraction of 8.0 g of a particular organic compound dissolved in 100 ml of water into diethyl ether proceeds with a distribution coefficient of 5. How much of the compound is extracted after three separate extractions using 50 ml of diethyl ether each time? ***Please show work as I am not 100% sure how to solve for X**** Thank you!
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
An aqueous solution containing 7.17 g of an optically pure compound was diluted to 300.0 mL...
An aqueous solution containing 7.17 g of an optically pure
compound was diluted to 300.0 mL with water and placed in a
polarimeter tube 15.0 cm long. The measured rotation was –2.15° at
25 °C. Calculate the specific rotation of the compound. The
specific reoation equation is determined by the equation:
An aqueous solution containing 7.17 g of an optically pure compound was diluted to 300.0 mL with water and placed in a polarimeter tube 15.0 cm long. The measured...
A chemist wants to extract a solute from 100 mL of water using only 300 mL...
A chemist wants to extract a solute from 100 mL of water using only 300 mL of ether. The partition coefficient between ether and water is 1.79. Calculate q, the fraction of solute that would remain in the water under each of the extraction conditions. The chemist performs a single extraction with 300 mL of ether. q= The chemist performs three extractions with 100 mL of ether. 9 = The chemist performs six extractions with 50 mL of ether. q=
Question 22 of 22 > Attempt 3 Assume an organic compound has a partition coefficient between...
Question 22 of 22 > Attempt 3 Assume an organic compound has a partition coefficient between water and ether equal to 9.67. If there are initially 9.39 grams of the compound dissolved in 75.0 mL of water, how many grams will remain in the aqueous layer after extraction with two 25.0 mL portions of ether? Mass: 0,53
An aqueous solution containing 4.71 g of an optically pure compound was diluted to 400.0 mL...
An aqueous solution containing 4.71 g of an optically pure
compound was diluted to 400.0 mL with water and placed in a
polarimeter tube 15.0 cm long. The measured rotation was -4.19℃ at
25 ℃. Calculate the specific rotation of the compound.
A solution containing 105 mg of compound C in 1.0 mL of water is
to be extracted with CH2Cl2. The distribution coefficient
of C between CH2Cl2 and water is 1.5. Note that compound C is more
soluble in CH2Cl2.
Part 4: Total amount of compound C removed from the aqueous
solution after three 0.70 mL extractions with CH2Cl2.
In Asolution containing 105 mg of compound C in 1.0 mL of water is to be extracted with CH2C12. The distribution coefficient...
5) A 100.0 mL aqueous solution containing 2.50 g of compound Z results is extracted with 25.0 mL of ethyl acetate. The ethyl acetate is evaporated to yield 0.95 g of compound Z. 4 points Calculate the partition coefficient (also known as the distribution coefficient) K, for compound Z in ethyl acetate and water, where K = (concentration of Z in diethyl ether) + (concentration of Z in water): Calculations Answer
An aqueous solution containing 7.17 g of an optically pure
compound was diluted to 300.0 mL with water and placed in a
polarimeter tube 15.0 cm long. The measured rotation was –2.15° at
25 °C. Calculate the specific rotation of the compound. The
specific reoation equation is determined by the equation:
An aqueous solution containing 7.17 g of an optically pure compound was diluted to 300.0 mL with water and placed in a polarimeter tube 15.0 cm long. The measured...
A chemist wants to extract a solute from 100 mL of water using only 300 mL of ether. The partition coefficient between ether and water is 1.79. Calculate q, the fraction of solute that would remain in the water under each of the extraction conditions. The chemist performs a single extraction with 300 mL of ether. q= The chemist performs three extractions with 100 mL of ether. 9 = The chemist performs six extractions with 50 mL of ether. q=
Question 22 of 22 > Attempt 3 Assume an organic compound has a partition coefficient between water and ether equal to 9.67. If there are initially 9.39 grams of the compound dissolved in 75.0 mL of water, how many grams will remain in the aqueous layer after extraction with two 25.0 mL portions of ether? Mass: 0,53
An aqueous solution containing 4.71 g of an optically pure
compound was diluted to 400.0 mL with water and placed in a
polarimeter tube 15.0 cm long. The measured rotation was -4.19℃ at
25 ℃. Calculate the specific rotation of the compound.
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