Acid–Base Equilibria (5A)
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QUESTION
What is the formula for
K
b
K_b
K
b
for
B
+
H
2
O
⇌
BH
+
+
OH
−
\text{B} + \text{H}_2\text{O} \rightleftharpoons \text{BH}^+ + \text{OH}^-
B
+
H
2
O
⇌
BH
+
+
OH
−
?
QUESTION
What is the relationship between conjugates:
K
a
(
HA
)
K
b
(
A
−
)
K_a(\text{HA})K_b(\text{A}^-)
K
a
(
HA
)
K
b
(
A
−
)
at
25
∘
C
25\,^{\circ}\text{C}
25
∘
C
?
QUESTION
What is the Lewis definition of an acid?
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ANSWER
An electron pair acceptor. Lewis theory defines acids as species that accept electron pairs to form coordinate bonds.
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