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Boric acid, $\mathrm{H}_{3} \mathrm{BO}_{3},$ is …
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Problem 82 Hard Difficulty

The simplest amino acid is glycine, $\mathrm{H}_{2} \mathrm{NCH}_{2} \mathrm{CO}_{2} \mathrm{H}$ . The common feature of amino acids is that they contain the functional groups: an amine group, $-\mathrm{NH}_{2},$ and a carboxylic acid group, $-\mathrm{CO}_{2} \mathrm{H}$ . An amino acid can function as either an acid or a base. For glycine, the acid strength of the carboxyl group is about the same as that of acetic acid, $\mathrm{CH}_{3} \mathrm{CO}_{2} \mathrm{H},$ and the base strength of the amino group is slightly greater than that of ammonia, $\mathrm{NH}_{3}$
(a) Write the Lewis structures of the ions that form when glycine is dissolved in 1$M \mathrm{HCl}$ and in 1 $\mathrm{M} \mathrm{KOH}$ .
(b) Write the Lewis structure of glycine when this amino acid is dissolved in water. (Hint: Consider the relative base strengths of the $-\mathrm{NH}_{2}$ and $-\mathrm{CO}_{2}^{-}$ groups.)

Answer

(GRAPH CANNOT COPY)

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Chemistry 102
Chemistry

Chapter 15

Equilibria of Other Reaction Classes

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Video Transcript

So starting with part A Upon the reaction with Excel Etch positive wine from the asset is attached to manage to group. Hence that lycee molecule will act as a base maybe trying to structure. So you write what you know. So did any positive on reaction? No continuation upon reaction with gay which the which negative wine from the bees extract out because off each positive I knw from see which group off placing ends Big lies in molecule will act as an asset so acid would be an see Make it two but be water. Have both exports a different which negative mines grew the which negative I'm from water extract on each positive from See which group off till I see the basic strength off. Manage to and see the blue group need to be compared to find out beer the H positive from water. The Amine Group is stronger base as compared to a car box late. I am because oxygen is less Electra negative in water hens etch positive goes to a mean group. The structure off slicing and water will be etch important. M c C edge double points for excision with the negative charge on positive charge on nitrogen. Then we have I got you

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Paul Flowers, Klaus Theopold, Richard Langley, William R. Robinson

Chemistry

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