Your employer hands you a heterogeneous mixture and asks you to isolate all of thehexane that you can from it. After some analysis, you determine that the mixture contains toluene, hexane,benzoic acid, water, sodium chloride, and sand. Explain how you would isolate pure hexane from thismixture. Remember that you can use techniques such as filtration, extractions, and acid/base chemistrythat we learned earlier in this course in addition to distillation. You may need to look up solubilities and/orboiling points online to solve this problem. You only need to isolate the hexane?

Your employer hands you a heterogeneous mixture and asks you to isolate all of thehexane that you can from it. After some analysis, you determine that the mixture contains toluene, hexane,benzoic acid, water, sodium chloride, and sand. Explain how you would isolate pure hexane from thismixture. Remember that you can use techniques such as filtration, extractions, and acid/base chemistrythat we learned earlier in this course in addition to distillation. You may need to look up solubilities and/orboiling points online to solve this problem. You only need to isolate the hexane?

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter21: Hydrocarbons

Section21.1: Introduction To Hydrocarbons

Problem 5SSC

See similar textbooks

Similar questions

The substance to be analyzed – is white, highly soluble in water salt. Flame coloration test gives weakly-violet color. Interaction with concentrated sulfuric acid leads to evolving of reddish-brown gas with pungent odour. Mixing of salt water solution with chlorine water in presence of trichloromethane changes of color of organic layer to orange. What kind of substance is this? KBr СаCl SrCl, KNO2
You have a mixture of an aryl halide and a carboxylic acid that you wish to separate(both are solids). Both are soluble in diethyl ether. Explain ALL the steps you would take to obtain the two compounds in pure form from your sample.
You have a mixture of an aryl halide and a carboxylic acid that you wish to separate (both are solids). Both are soluble in diethyl ether. Explain ALL the steps you would take to obtain the two compounds in pure form from your sample.
Consider a ternary (three-component) system of amphiphile, hydrocarbon, and water. What structure do you expect to form if small amounts of the first two components are mixed with a large amount of water?
You are employed as a coop student at the Drug and Alcohol Testing Association of Canada (DATAC) developing analytical tests for sports doping agents. You are asked to prepare a procedure for the extraction of methylphenidate, the active compound in Ritalin, from urine samples (consider them as simple aqueous layers, you do not need to consider other components!). The goal of the procedure is to extract the methylphenidate into an organic layer which will then be evaporated, and the residue will be tested for the drug.Your colleague is helping you develop the urine test. They suggest that the urine should be adjusted to a pH above 7 before extracting with the organic solvent. Why is this necessary? Support your explanation with a full arrow-pushing mechanism for the reaction that would occur if the pH was below 7. Include all formal charges, intermediates (if applicable) and products.
You are given an impure sample of fluorene. Your crystallization solvent choices are water, methyl alcohol and toluene. Using your understanding of polarity and solubility, predict which solvent would be the best choice for crystallization. Briefly explain your answer choice and why the other two choices were eliminated.
You are employed as a coop student at the Drug and Alcohol Testing Association of Canada (DATAC) developing analytical tests for sports doping agents. You are asked to prepare a procedure for the extraction of methylphenidate, the active compound in Ritalin, from urine samples (consider them as simple aqueous layers, you do not need to consider other components!). The goal of the procedure is to extract the methylphenidate into an organic layer which will then be evaporated, and the residue will be tested for the drug.You find that methylphenidate is highly soluble in 2-methyltetrahydrofuran, a bio-renewable solvent. Draw the structure of 2-methyltetrahydrofuran and give two reasons why it is a good solvent choice for liquid-liquid extraction.
Consider propanoic (CH3CH2CH2CO2H) acid and pentanoic (CH3CH2CH2CH2CO2H) acid and the corresponding alcohols with the same number of carbons, propanol (CH3CH2CH2COH) and pentanol (CH3CH2CH2CH2COH). Select the class of compound that is more soluble. {one answer] Select the best explanation for your answer to the previous question. [a second answer] Group of answer choices a. The solubility of alcohols in water decreases with increasing chain length. b. Propanoic acid and pentanoic acid are more soluble in water than the corresponding alcohol. c. Carboxylic acids are generally more soluble in water than alcohols of the same chain length because of increased hydrogen bonding with the -COOH functional group. d. Propanol and pentanol are more soluble in water than the corresponding carboxylic acid e. The solubility of carboxylic acids in water decreases with increasing chain length. f. Alcohols are generally more soluble in water than carboxylic acids of the same…
A mixture is made up of low molecular weight carboxylic acid, alcohol and ester. What one step procedure can you use to extract the ester component from the mixture? Describe the process briefly
How can we predict if 1- propanol is mixed with distilled water? Are the mass and volume conserved? When you mix two gases what can we predict about the conservation of volume in this case?
Which of the following is NOT a distillation technique? . Simple distillation Density distillation Vacuum distillation Fractional distillation
19. A liquefied mixture of n-butane, n-pentane, and n-hexane has the following composition: n-C,H10 50%, n-C,H12 30%, and n-C,H14 20%. For this mixture, calculate: a) The weight fraction of each component. b) The mole fraction of each component. c) The mole percent of each component. d) The average molecular weight of the mixture.