At pH=2.2, which of the following is true СООН ÇO0 Ç00 CO0 H,N-CH H3N-CH H,N-CH H2N-CH CH2 pK, CH2 pKR CH, CH2 CH, CH2 pK2 CH2 CH2 COOH COOH COO- COO-

Biology (MindTap Course List)
11th Edition
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Chapter3: The Chemistry Of Life: Organic Compounds
Section3.1: Carbon Atoms And Organic Molecules
Problem 3C
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T
At pH=2.2, which of the following is true
ÇOOH
ÇO0
Ç00
HN-CH
H,N-CH
H&N-CH
HN-CH
CH2
CH2
CH,
pK2
CH2
CH2
pK,
CH2
pKR
CH2
CH2
COOH
СООН
COO
COO-
II
IV
O 50 % of carboxylic acid group in the side chain is ionized
O Most of the molecules are in the form II
None
50% of carboxylic acid group attached to alpha carbon is ionized
50% of amino group is ionized
Transcribed Image Text:T At pH=2.2, which of the following is true ÇOOH ÇO0 Ç00 HN-CH H,N-CH H&N-CH HN-CH CH2 CH2 CH, pK2 CH2 CH2 pK, CH2 pKR CH2 CH2 COOH СООН COO COO- II IV O 50 % of carboxylic acid group in the side chain is ionized O Most of the molecules are in the form II None 50% of carboxylic acid group attached to alpha carbon is ionized 50% of amino group is ionized
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