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Chemistry
Chemistry
Problem
A student mixes 50.0 mL of 0.250 M pyridine (
C
5
H
5
N
\mathrm{C_5H_5N}
C
5
H
5
N
,
K
b
=
1.7
×
10
−
9
K_b = 1.7\times10^{-9}
K
b
=
1.7
×
1
0
−
9
) with 25.0 mL of 0.250 M
H
C
l
\mathrm{HCl}
HCl
. What is the pH of the resulting solution at 25 °C? a) 8.77 b) 7.00 c) 5.23 d) 3.30
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