Using Argn (n = - 2, - 1, 0, + 1, + 2, etc.) to represent the different charge species of Arginine, what is the dominant species of Arginine at pH 2.7? That is, which one has the highest concentration?

Question

Chemistry

Alessandra Booker

22 April, 05:15

Using Argn (n = - 2, - 1, 0, + 1, + 2, etc.) to represent the different charge species of Arginine, what is the dominant species of Arginine at pH 2.7? That is, which one has the highest concentration?

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Answers (1)

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Callie White · Answer 1

From the sorensen equation; pH = - Log[H+]

2.7 = - Log[H+]

H + = 10^-2.7

H + = 0.001995M = Hydrogen ion concentration

Basically, the more the charges, the higher the hydrogen ion concentration stand vice versa. + 2 has the highest concentration.