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Effect of pH on Enzymes

What is the p...

Question

What is the pH of a 0.10M solution of ethylenediaminetetraacetic acid (edta). K_{a_1=1×10^{-2,K_{a_2=2\cdot1×10^{-3,K_{a_3=6.9×10^{-7 and K_{a_4=5.5×10^{-11 .

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100 m L

0.1 M

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0.1 M

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G i v e n K_{a 1} = 10^{- 3}, K_{a 2} = 10^{- 8}, K_{a 3} = 10^{- 13}

(H_{2} C O_{3})

K_{a_{1}} = 4.0 \times 10^{- 7}

K_{a_{2}} = 7.0 \times 10^{- 11}

[H C O_{3}^{-}]

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(K_{a_{1}} = 10^{- 5}, K_{a_{2}} = 10^{- 9}, K_{a_{3}} = 10^{- 13})

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0.1 M H_{3} A (a q .)

p X = - log X

X = \frac{[A^{3 -}]}{[H A^{2 -}]}

H_{3} A

(K a_{1} = 10^{- 5}, K a_{2} = 10^{- 9}, K a_{3} = 10^{- 13}) .

p X

0.1 M H_{3} A (a q)

p X = - l o g X

X = \frac{[A^{3 -}]}{[H A^{2 -}]}

10 m L

0.1 M

H_{3} A

0.1 M N a O H

\frac{[H_{3} A]}{[A^{3 -}]}

2^{n d}

K_{a_{1}} = 10^{- 3}, K_{a_{2}} = 10^{- 8}, K_{a_{3}} = 10^{- 12}

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