A student has an unknown sample. How can spectroscopy be used to identify the sample?

2 answers:

4 0

Every substance has a unique interaction or response to an electromagnetic radiation. He can use spectroscopy by looking at the response of the unknown sample to an electromagnetic radiation. Spectroscopy is <span>is the study of the interaction between matter and electromagnetic radiation. </span>

DiKsa [7]3 years ago

4 0

the answer is A!!!!!!!

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See the image 1

Explanation:

If you look carefully at the progress of the SN2 reaction, you will realize something very important about the outcome. The nucleophile, being an electron-rich species, must attack the electrophilic carbon from the back side relative to the location of the leaving group. Approach from the front side simply doesn't work: the leaving group - which is also an electron-rich group - blocks the way. (see image 2)

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What this means is that SN2 reactions whether enzyme catalyzed or not, are inherently stereoselective: when the substitution takes place at a stereocenter, we can confidently predict the stereochemical configuration of the product.