4 AM Tue Nov 12 92% #22 polyprotic acids.docx Student Name: #22 Polyprotic Acids 3. A typical vitamin C tablet contains pure ascorbic acid H.CH.O. (a weak, diprotic acid). If 2 tablets are dissolved in about a cup of water, the resulting concentration of the ascorbic acid is 0.0115 M. a. Give the equation for the dissociation for the first ionization (loss of the first acidic H). This ionization has a Ka of 8.00 x 10 5 HC6H606- + H30+ H2C6H606 + H20 b. What is the equilibrium concentration for all species from the first ionization? LA Cet.O + A,Gahe On AC, O,08010 to Cols- 415 -X 9.20101-.0010- 2+8.00x 10-9,201D- +X X ElD l15-x X X-9.2010 1.00x10 00 x /03 1obx(02 CHC AeOand Ct0- 9,20-I0- - 2 t f
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See attached images; one is the question and the other is my solution. For part B I'm not sure where I went wrong, as the resulting x gives me a negative concentration for the second ionization. If this answer is correct, I will submit a question for help with the second ionization.
Thank you!
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