A typical vitamin C tablet contains pure ascorbic acid H₂C6H6O6 (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.

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Chapter13: Acids And Bases
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Problem 188IP: Isocyanic acid (HNCO) can be prepared by heating sodium cyanate in the presence of solid oxalic acid...
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Please at least answer parts c, d, e, but answering all parts would be nice :) 

A typical vitamin C tablet contains pure ascorbic acid H₂C6H6O6 (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.
b. What is the equilibrium concentration for all species from the first ionization?
c. Give the equation for the dissociation for the second ionization (loss of the second
acidic H from the CB of step a).
d. What is the equilibrium concentration for all species in the second ionization if the Ka
for the second H is 1.6 x 10-¹²?
e. Combining your answers from b and d, what is the total H3O+ concentration, pH, pOH,
and % ionization?
Transcribed Image Text:A typical vitamin C tablet contains pure ascorbic acid H₂C6H6O6 (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. b. What is the equilibrium concentration for all species from the first ionization? c. Give the equation for the dissociation for the second ionization (loss of the second acidic H from the CB of step a). d. What is the equilibrium concentration for all species in the second ionization if the Ka for the second H is 1.6 x 10-¹²? e. Combining your answers from b and d, what is the total H3O+ concentration, pH, pOH, and % ionization?
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