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Chemistry
Chemistry
Problem
Calculate the numerical value of the ratio
[
A
−
]
[
H
A
]
\dfrac{[A^-]}{[HA]}
[
H
A
]
[
A
−
]
required for a buffer solution to have
pH
=
7.60
\text{pH}=7.60
pH
=
7.60
when the weak acid in the system has
p
K
a
=
7.20
\text{p}K_a=7.20
p
K
a
=
7.20
.
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