Acids And Bases Worksheet - Michalek, Unit 14 Page 25
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27AP Chemsitry--Michalek
25
Unit 14 Acids and Bases
Worksheet 14.6a Polyprotic Acids
name______________________
1. Write out the stepwise K
reactions for the diprotic acid H
SO
.
a
2
3
2. Write out the stepwise K
reactions for citric acid ( H
C
H
O
), a triprotic acid.
a
3
6
5
7
3. Using the K
values in Table 14.4 and only the first dissociation step, calculate the pH of 0.10 M solutions of
a
each of the following polyprotic acids.
a. H
PO
3
4
b. H
CO
2
3
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