pH and pK
AP Chemistry · Flashcards
AP CHEMISTRY · FLASHCARDS
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QUESTION
Identify the pH range of a basic solution.
QUESTION
Calculate the pH of a 0.05 M H
2
_2
2
SO
4
_4
4
solution.
QUESTION
Calculate
K
b
K_b
K
b
if
K
a
=
1.0
×
10
−
5
K_a = 1.0 \times 10^{-5}
K
a
=
1.0
×
1
0
−
5
for a conjugate acid-base pair.
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ANSWER
K
b
=
1.0
×
10
−
9
K_b = 1.0 \times 10^{-9}
K
b
=
1.0
×
1
0
−
9
. Using
K
a
×
K
b
=
1.0
×
10
−
14
K_a \times K_b = 1.0 \times 10^{-14}
K
a
×
K
b
=
1.0
×
1
0
−
14
.
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