1. Glutamic acid contains two carboxylic acid groups (pKa = 2.2 and 4.2) and an amine group (pKa = 9.7). What is the pI for glutamic acid? What is glutamic acid's net charge in a solution with pH =7.4?
(A) 3.2, negative charge
(B) 6.0, negative charge
(C)6.5, no charge
(D) 7.0, positive charge
(E) none of the above
詳解 (共 4 筆)
未解鎖
（2.2+4.2)/2=3.2pH>...
未解鎖
glutamic acid麩胺酸屬於酸性...
未解鎖
快速解法（不一定正確）三種基團中，兩個相...
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