Calculate the [H3O+] and pH of each polyprotic acid
solution.
Dissociation Constants for Acids at 25 ∘C
Formula
Ka1
Ka2
Ka3
H2CO3
4.3×10−7
5.6×10−11
H3C6H5O7
7.4×10−4
1.7×10−5
4.0×10−7
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Chemistry
Calculate the [H3O+] and pH of each polyprotic acidsolution.
Dissociation Constants for Acids at 25 ∘C
Formula
Ka1
Ka2
Ka3
H2CO3
4.3×10−7
5.6×10−11
H3C6H5O7
7.4×10−4
1.7×10−5
4.0×10−7
PART A
0.130 M H3C6H5O7 H3O+=
PART B
0.130 M H3C6H5O7 pH =
Answer & Explanation
Solved by verified expert
4.4 Ratings (843 Votes)
If the Ka or pKa values are not provided in the question they should be then you have to source these from some reference list I often find some slight differences
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