Macroscale and Microscale Organic Experiments
7th Edition
ISBN: 9781305577190
Author: Kenneth L. Williamson, Katherine M. Masters
Publisher: Brooks Cole
expand_more
expand_more
format_list_bulleted
Question
Chapter 7, Problem 4Q
Interpretation Introduction
Interpretation:
Weight of solute A that would be removed in four successive extractions with
Concept introduction:
The distribution coefficient is a parameter that indicates the extent of the solubility of two immiscible components in two different phases.One of the phases is aqueous, while the other is the organic phase.
Mathematically,
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Calculate the percentage CH3COOH in a sample of vinegar from the following data.Sample = 15.00 g, NaOH used = 43.00 ml ; 0.600 N H2SO4 used for back titration =0.250 ml ; 1.00ml NaOH is equivalent to 0.0315 g H2C2O4. 2H2O.
The distribution coefficient (K) of formic acid (HCO2H) in 1-octanol versus water is 0.39. If a solution of 4.00 grams of formic acid in 100.00 mL of 1-octanol is extracted with one 10.00 mL portion of water, how many grams (to the hundredths place) will remain in the organic layer?
A 50.00 mL sample of white dinner wine required 28.54 mL of 0.03867 N NaOH to achieve a phenolphthalein endpoint. Express the acidity of the wine in terms of %w/v of tartaric acid (H2C4H4O6, MW=150.09g/mol).
Chapter 7 Solutions
Macroscale and Microscale Organic Experiments
Knowledge Booster
Similar questions
- Twenty sodium salicylate tablets labeled 325 mg were dispersed in sufficient water to make 200.0 mL. A 15.0–mL aliquot of the filtrate was titrated to a bromophenol blue endpoint in the usual way by 32.11 mL of 0.1000 N hydrochloric acid. Calculate the amount of sodium salicylate in each tablet, and from that, the percentage of the labeled amount. (NaC7H5O3 MW = 160.11 g/mol) Amount of sodium salicylate in each tablet = % labelled amount =arrow_forwardGive the detailed step-by-step procedure for the preparation of 20 mL of 0.0005 M KOH.arrow_forwardGive the detailed step by step procedure for the preparation of 500 mL of 0.2 M K4 Fe (CN) 6.arrow_forward
- Calculate the percentage CH3COOH in a sample of vinegar from the following data. Sample = 15.00 g, NaOH used = 43.00 ml ; 0.600 N H2SO4 used for back titration =0.250 ml ; 1.00 ml NaOH is equivalent to 0.0315 g H2C2O4. 2H2O.arrow_forwardA pharmacist is conducting an analysis of 2.7 g sodium bicarbonate and titrated with 26.05 mL of 0.9987 N HCl. What is the potency or percent assay of sodium bicarbonate? Did it pass the USP requirement? ROUND-OFF TO 2 DECIMAL PLACES. Answer = _% Disposition (Passed or Failed) = _arrow_forward13-4. Briefly explain why the concentration units of milligrams of solute per liter and parts per million can be used interchangeably for a dilute aqueous solution.arrow_forward
- Give a detailed step-by-step procedure for the preparation of 100 mL of 5 M NH 3 Cl.arrow_forwardConsider the equilibration of a weak base B (K₁ = 5.57 x 10-5) between water (phase 1) and benzene (phase 2). Which expression represents D, the distribution ratio? B represents the unprotonated form of the base and BH+ represents the protonated form of the base. O [B] 2 [B]₁ [BH+]2 [B]₁ + [BH+]₁ [B]2 [B]₁ + [BH+]₁ O [BH+]2 [BH+]₁ D= Calculate D at pH 8.43 if Kp = 44.0. Which expression represents Kp, the distribution constant? B represents the unprotonated form of the base and BH represents the protonated form of the base. [B]2 [B]₁ [B]2 [B]₁ + [BH+]₁ [BH+]2 [B]₁ + [BH+]₁ [BH+]2 [BH+]₁ Will D be larger or smaller at pH 7.00 than at pH 8.43? omallerarrow_forward100mL of 0.5 M sodium hydroxide was used to completely titrate 150 mL of H3PO4. What was the original molar concentration of the H3PO4 solution?arrow_forward
- A 3mL sample of 2-hexene is mixed with 5.0mL of 0.10 M KMnO4 solution. Predict what the resulting mixture will look like. Explain your prediction.arrow_forwardA pharmacist prepares 215 mL of an isotonic solution of 3.5 %w/v Lidocaine HCI (E- value= 0.2). To prepare the solution, he dissolves Lidocaine HCI in purified water to make an isotonic solution. Then he dilutes the Lidocaine HCI solution with 0.9 %w/v sterile sodium chloride to complete the formulation. How many milliliters of purified water is needed to make the formulation by this method? Report your answer to 1 decimal place. DO NOT include units.arrow_forwardA mixture may contain NaOH, NaHCO3, Na2CO3 or any compatible mixture of these. A sample weighing 0.245 g requires 10.30 mL of 0.0990 N HCl to reach a phenolpthalein endpoint and an additional 26.25 mL to reacha bromcresol green endpoint. a. What are the components of the mixture? Put Yes for the components and NO if the component is not present. a1. NaOH a2. NaHCO3 a3. Na2CO3 b. Determine the composition anf amounts (in w/w) of each components of the mixture. Put 0 for the component which is no present. b1. % NaOH b2. %NaHCO3 b3. %Na2CO3arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
