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Chemistry
Chemistry
Problem
A basic buffer was made by mixing 25
cm
3
\text{cm}^3
cm
3
of
0.100
mol dm
−
3
0.100 \text{ mol dm}^{-3}
0.100
mol dm
−
3
ammonia (
p
K
b
=
4.75
\text{p}K_b = 4.75
p
K
b
=
4.75
) with 40
cm
3
\text{cm}^3
cm
3
0.100
mol dm
−
3
0.100 \text{ mol dm}^{-3}
0.100
mol dm
−
3
ammonium chloride solution. Calculate the pH of the buffer solution at 25 °C.
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