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Topic: solubilty of para-nitrophenol and naphthylene  (Read 3620 times)

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Offline SheffieldWednesday4ever

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solubilty of para-nitrophenol and naphthylene
« on: September 15, 2009, 07:56:13 PM »
Hei everyone,
I am new but I was wondering if anyone could help me with this problem

I need a way to separate a mixture of para-nitrophenol and naphthylene by exploiting their different solubilities.

Thanks

Offline Borek

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Re: solubilty of para-nitrophenol and naphthylene
« Reply #1 on: September 16, 2009, 02:40:32 AM »
You have to show your attempts to receive help. This is a forum policy.

Check what ARE their solubilities in diffrent pHs and in different solvents.
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info, pH-meter.info

Offline SheffieldWednesday4ever

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Re: solubilty of para-nitrophenol and naphthylene
« Reply #2 on: September 16, 2009, 07:24:44 PM »
Okay sorry. I've read the rules now.

Based on my question, it tries to get me to consider the functional groups of the two molecules. I understand that the P-nitrophenol is very acidic because the NO2 is a strong electron withdrawing group to make the Oxygen less negative. Therefore, the hydrogen wants to leave. So if I added say, an aqueous solution of Na-OH, the p-nitrophenol would be de-protonated and the phenol would be dissolved in the water.

But for the naphthylene, there seems to be many ether groups. So if I mix a solution of ether with a solution of Na-OH, would the two compounds be separated? Or is there a better/right way?

Thanks again

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