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Alanine, H2NCH(CH3)CO2H, has Ka=4.5xx10^...

Alanine, `H_2NCH(CH_3)CO_2H`, has `K_a=4.5xx10^(-3) and K_b=7.4xx10^(-5)` Which species has the highest concentration at a pH of 7.00 in `H_2O`?

A

`H_2NCH(CH_3)CO_2H`

B

`.^+ H_3NCH(CH_3)CO_2H`

C

`H_2NCH(CH_3)CO_2^(-)`

D

`.^(+)H_3NCH(CH_3)CO_2^(-)`

Text Solution

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The correct Answer is:
c
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