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Identify Solid Unknown Using IR Spectra

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Attached to this problem is an IR spectra of an unknown which is known to be a solid and after a few solubility and other test I think that it is a carboxylic acid. I needed some one else to verify. Please label peaks and give the name of compound.

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A succinct explanation is given along with an attached diagram. The carboxylic acid test for solubility is examined.

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I'd like to let you know that it is nearly impossible to identify a compound just by looking at an IR ...

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