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what is the R group in glycine?...

what is the R group in glycine?

A

`CH_(2)-OH`

B

H

C

`CH_(3)`

D

none of them

Text Solution

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The correct Answer is:
B
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What is the pH of 0.01 M glycine solution? For glycine K_(a_(1)) = 4.5 xx 10^(-3) and Ka_(2) = 1.7 xx 10^(-10) at 298 K

What is the pH of 0.01 M glycine solution? For glycine, K_(a_(1))=4.5xx10^(-3) and K_(a_(2))=1.7xx10^(-10) at 298 K

Knowledge Check

  • What is the pI of glycine ? The structure and pKa values are shown below

    A
    7.36
    B
    5.97
    C
    3.63
    D
    11.94

  • What is the pH of 0.01M glycine solution ? For glycine K_(a_(1))=4.5xx10^(-3) and K_(a_(2))=1.7xx10^(-10) at 398 K

    A
    `3.0`
    B
    `10.0`
    C
    `6.1`
    D
    `7.2`

  • Amino acids exist in Zwitter ion form. What is the structure of glycine at pH = 4?

    A
    `H_3N^(o+)-CH_2-COO^-`
    B
    `H_3N^(o+)-CH_2-COOH`
    C
    `H_2N - CH_2- COOH`
    D
    `H_2N - CH_2-COO^-`

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