Unknown Organic Chemicals Distinction

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Discussion Overview

The discussion revolves around distinguishing between various organic compounds, specifically 1-hexene, cyclohexanol, 1-bromobutane, 1-propanol, 2-hexene, 1-hexyne, 2-bromopentane, 3-methyl-3-hexanol, and 3-bromo-3-methylhexane. The focus is on identifying methods to differentiate these compounds through chemical tests, rather than separating them from a mixture.

Discussion Character

  • Homework-related
  • Technical explanation

Main Points Raised

  • One participant describes using ZnCl2 in HCl to distinguish cyclohexanol and 3-methyl-3-hexanol from other compounds.
  • Another participant mentions using acidic chromate solution to identify 1-propanol based on the formation of green chromium (III) ion.
  • A participant seeks clarification on whether the task involves distinguishing samples of each compound or separating them from a mixture.
  • It is clarified that the task is to distinguish between different samples, which are not mixed together.
  • Another participant categorizes the compounds into groups based on their functional classes, noting the presence of primary, secondary, and tertiary alcohols, as well as olefins and alkyl halides.
  • A resource link is provided to assist in finding chemical tests relevant to the compounds in question.

Areas of Agreement / Disagreement

Participants generally agree on the nature of the task being to distinguish between individual samples rather than separating a mixture. However, there is no consensus on the specific methods to be used for all compounds.

Contextual Notes

Limitations include the lack of specific information in the textbook referenced by participants, and the need for additional resources to identify suitable tests for distinguishing the compounds.

scurry18
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Homework Statement


Use a flow chart to distinguish between: 1-hexene, cyclohexanol, 1-bromobutane, 1-propanol, 2-hexene, 1-hexyne, 2-bromopentane, 3-methyl-3-hexanol, 3-bromo-3-methylhexane by using a positive and negative test by adding other compounds

Homework Equations


N/A

The Attempt at a Solution


I used ZnCl2 in HCl to distinguish cyclohexanol and 3-methyl-3-hexanol from the rest and used the same test to distinguish them from each other.
Then, I used acidic chromate solution to distinguish 1-propanol by the formation of green chromium (III) ion
I just do not know where to find the information on how to separate these compounds (It is not in my book.) Any and all information would be awesome!
 
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scurry18 said:
I just do not know where to find the information on how to separate these compounds (It is not in my book.) Any and all information would be awesome!

Is the question asking to distinguish between samples of each of these or to find a way to separate a mixture of them?
 
It asks to distinguish between different samples of each. They are NOT mixed together.
 
Separate them into groups. You have 3 examples of alcohols, one primary, one secondary and one tertiary. You have 2 examples of olefins, one alpha and one internal. You have one example of an alkyne. Its unsaturation might lead you to believe that it is an olefin but it has a property that olefins don't. You have 3 examples of alkyl halides, one primary, one secondary and one tertiary.

Now, find http://www.docbrown.info/page13/ChemicalTests/ChemicalTests.htm" and you are ready to begin.
 
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