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

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^(-)`

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`?

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