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Chemistry
Chemistry
Problem
A 50.0 mL sample of 0.200 M diprotic acid H
2
_2
2
A (
K
a
1
=
4.0
×
10
−
4
K_{a1}=4.0 \times 10^{-4}
K
a
1
=
4.0
×
1
0
−
4
,
K
a
2
=
4.0
×
10
−
8
K_{a2}=4.0 \times 10^{-8}
K
a
2
=
4.0
×
1
0
−
8
) is titrated with 0.200 M NaOH. What is the pH of the solution after exactly one equivalent of base has been added? a)
7.00
7.00
7.00
b)
8.20
8.20
8.20
c)
5.40
5.40
5.40
d)
3.40
3.40
3.40
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