3. 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?
3. 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?
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter14: Acid-base Equilibria
Section: Chapter Questions
Problem 101E: A buffer solution is prepared from equal volumes of 0.200 M acetic acid and 0.600 M sodium acetate....
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Transcribed Image Text:3. A typical vitamin C tablet contains pure ascorbic acid H2C6H606 (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
arlt el todW b
aiH broosz arit ot
H). This ionization has a Ka of 8.00 x 10°.
b. What is the equilibrium concentration for all species from the first ionization?
Transcribed Image Text:c. Give the equation for the dissociation for the second ionization (loss of the second
acidic H from the CB of step a).
(blsp sire Non)0 Mboon eniatr
I4 5 497
d. What is the equilibrium concentration for all species in the second ionization if the Ka
for the second H is 1.6 x 10-122
Drertamine eT srir men es llo nol nor onon murndilups orit ai toriW d
e. Combining your answers from b and d, what is the total H3O* concentration, pH, pOH,
and % ionization?
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