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How do chemists use the IR spectrum?

Answer 1

Lucy Alessi

See here for an old answer.

In general, the presence of an IR active functionality in the molecule is necessary, i.e. #C=O# or #N=O#.

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Answer 2

Isabella Acosta

Chemists use the IR (infrared) spectrum to analyze the molecular composition of substances. IR spectroscopy measures the absorption of infrared radiation by molecules, which provides information about the functional groups present in the molecule. By comparing the IR spectrum of an unknown compound to reference spectra, chemists can identify functional groups and determine the structure of the compound. This technique is widely used in organic chemistry for compound identification, structural analysis, and characterization of chemical reactions.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.