Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Chemistry
Chemistry
Problem
A set of buffer solutions was prepared, and a plot of pH versus
log
(
[
A
−
]
/
[
H
A
]
)
\log([A^-]/[HA])
lo
g
([
A
−
]
/
[
H
A
])
yielded the best-fit line
pH
=
0.99
x
+
4.62
\text{pH} = 0.99x+4.62
pH
=
0.99
x
+
4.62
(
R
2
=
0.997
R^2 = 0.997
R
2
=
0.997
), where x represents
log
(
[
A
−
]
/
[
H
A
]
)
\log([A^-]/[HA])
lo
g
([
A
−
]
/
[
H
A
])
. Based on this equation, determine the pKa of the weak acid.
Browse the problem library