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Hello experts! Attached below you may find one problem with several items to be completed, please answer the question with its respective items as the entire set will account just for 1 problem according to chegg's policies. I will prefer the answer to be stepwise (drawing detail chair conformations) with legible handwritten work/drawing/text (I have some dyslexia problems and I will be really glad if you could support me with the previous request). Thank you so much for your time and effort experts!

PROBLEM TO BE SOLVED

(1 point) A very strong broad peak is observed in the IR spectrum of unknown A at 3300 cm-1. Is this compound acetone (CH3)2C-0 or ethanol (CH3CH20H)? 1. (1 point) True or false. Organic compounds must be liquids or dissolved in a solvent in order to obtain an IR spectrum.. 2.

Explanation / Answer

1. The compound is ethanol (CH3CH2OH).

Explaination:

In IR spectrum, alcohols show a characteristic strong broad peak for the O-H stretching with a frequency in the region 3200-3600 cm-1. An intermolecularly hydrogen bonded O-H shows a strong broad band at around 3300 cm-1. For acyclic saturatd ketones like acetone, the characteristic band is a strong stretching frequency of the C=O bond of the carbonyl group in the region 1705-1725 cm-1. Thus, the strong broad peak of 3300 cm-1 is for the intermecularly hydrogen bonded O-H bond of ethanol. Hence, the compound is ethanol.

2. TRUE

Although IR spectra can be taken in vapor, liquid and solid state, generally a compound is dissolved in a suitable solvent in order to obtain a meaningful and accurete IR spectrum. Hence, the given statement is TRUE.

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