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How is IR spectroscopy read?

Answer 1

Infra red spectroscopy is read or interpreted by identifying where in the infra red spectrum a functional group in a molecule vibrates.

A molecule is exposed to infrared light in an infra red spectrophotometer, which causes the bonds to vibrate at specific wavenumbers that can be plotted on paper and measured in reciprocal centimeters. For instance, in carbonyl compounds, the wavenumber of the carbonyl groups stretches from 1600 to 1800 reciprocal centimeters, and that of the hydroxy groups is from 4000 to 3500 reciprocal centimeters.

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Answer 2

Ella Allen

Infrared (IR) spectroscopy is read by measuring the absorption of infrared radiation by molecules. A spectrum is generated by plotting the intensity of absorbed radiation against the frequency or wavelength of the radiation. Peaks in the spectrum correspond to specific vibrational modes within the molecule, providing information about its structure and composition.

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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.