Calculate h2asc, hasc^-

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Problem- Ascorbic acid (H2C6H6O6 or HAsc), known as vitamin c, is a diprotic acid (Kal= 1.0 x 10 ^-5 and Ka2= 5 x 10 ^-12) found in cirus fruit. Calculate [H2Asc], [HAsc^-], [Asc^2-], and the pH of 0.050M H2Asc. Please break down the steps so I know how you solved this problem.

I need help for above question. Show each steps for the above problem.

 

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Calculate h2asc, hasc^- : Problem- Ascorbic acid (H2C6H6O6 or HAsc), known as vitamin c, is a diprotic acid (Kal= 1.0 x 10 ^-5 and Ka2= 5 x 10 ^-12) found in cirus fruit. Calculate [H2Asc], [HAsc^-], [Asc^2-], and the pH of 0.050M H2Asc. Please break down the steps so I kn..
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