A 45.0 ml solution of 0.0400 M hydroxylamine is extracted with 125 mL of solvent. The partition coefficient for the...
If the partition coefficient of a drug between an organic solvent and water is 5, how many mg of the drug is extracted from a 120 ml of 2% aqueous solution if it was extracted with 60 ml of the organic let mass of compound insolution = 4mg
A monoprotic acid (Ka = 4.31 x 10-5) has a partition coefficient of 4.4 in favor of octanol) when distributed between water and octanol. Find the concentration of the acid remaining in the aqueous phase when when 100 mL of 0.10 M aqueous solution of the acid is extracted with 27 mL of octanol at pH 4.00. a. 0.17 M b.0.546 M OC. 0.01 M o d. 0.0546 M
A) B) Question 7 of 13 > Attempt 2 Solute S has a partition coefficient of 4.6 between water (phase 1) and hexane (phase 2). Calculate the concentration of solute S in hexane if [S]water is 0.020 M. [Shexane = If the volume of water is 67.0 mL and the volume of hexane is 20.0 mL, find the ratio of the moles of solute S in hexane to the moles of solute S in water. mol Sheuane mol Swaler Solute...
The partition coefficient, K, for compound A between toluene and water is 7.25. What is the concentration of compound A remaining in the aqueous phase after 40.0 mL of 0.205 M A is extracted with each quantity of toluene indicated? one 35.0 mL portion: [A]= two 17.5 mL portions: (A)2 = five 7.00 mL portions: [A]g = ten 3.50 mL portions: [A] 20 =
A monoprotic acid, HA, with a K of 3.43 x 10 has a partition coefficient of 2.83 (favoring octanol) when distributed between water and octanol. Find the formal concentration of the acid in each phase when 100 mL of 0.100 M aqueous acid is extracted with 25 mL of octanol at pH 4.00 and pH 9.00. pH 4.00, in water: 0.0655 M pH 4.00, in octanol: 0.0345 pH 9.00, in water: 0.0910 M pH 9.00, in octanol: 0.900
A monoprotic acid, HA, with a Ka of 6.67 × 105 has a partition coefficient of 4.0 (favoring octanol) when distributed between water and octanol. Find the formal concentration of the acid in each phase when 100 mL of 0.100 M aqueous acid is extracted with 25 mL of octanol
A monoprotic acid (Ka = 4.31 x 10) has a partition coefficient of 4.4 (in favor of octanol) when distributed between water and octanol. Find the concentration of the acid in the octanol when 100 mL of 0.10 M aqueous solution of the acid is extracted with 27 mL of octanol at pH 9.00. a. 0.010 M b. 0.0000276 M OC. 0.00001 M d.0.099 M
100 mL of aqueous solution containing 2,4,6-trinitrotoluene (TNT) at an initial concentration of 0.05 ppm is shaken with 10 mL hexane. After the phase separation, it was determined that the organic phase has 0.4 ppm. What is the partition coefficient, and what is the percent extracted? If the equilibrium concentration (rather than initial concentration) is 0.05 ppm, this would simplify the calculation. What would then be the partition coefficient and percent extracted? (Please answer or provide something for the second...
Solute A has a partition coefficient of 8 between toluene and water. Suppose that 350 mL of a 0.01 M aqueous solution of A are extracted with toluene. What would be the extraction efficiency (R%) if 2 extractions with 50 mL toluene were performed? (Keep one decimal place in your final answer.)
1. An analyte has a partition coefficient of 2.0 between water and 1-pentanol. Given that 200 mL of a 5 % EtOH solution in water was extracted with 1-pentanol, calculate the fraction q of the analyte remaining in the aqueous phase (a) if one extraction of 200 mL is performed and (b) ten extractions of 100 mL are performed. (Hint: see page 49 in the manual. 2. For both 1a and 1b now calculate the Extraction Efficiency as a percentage