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Chemistry
Chemistry
Problem
Sulfurous acid,
H
2
S
O
3
H_2SO_3
H
2
S
O
3
, has
K
a
1
=
1.5
×
10
−
2
K_{a1} = 1.5\times10^{-2}
K
a
1
=
1.5
×
1
0
−
2
and
K
a
2
=
6.3
×
10
−
8
K_{a2} = 6.3\times10^{-8}
K
a
2
=
6.3
×
1
0
−
8
. A
50.0
mL
50.0\,\text{mL}
50.0
mL
portion of
0.100
M
0.100\,\text{M}
0.100
M
H
2
S
O
3
H_2SO_3
H
2
S
O
3
is titrated completely to the second equivalence point with
0.100
M
0.100\,\text{M}
0.100
M
NaOH. Determine the pH of the solution at this second equivalence point.
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