What are pKa and pKb in acids and bases?
1 Answer
Acids
When you dissolve an acid in water, it undergoes an equilibrium reaction with the water in an.
HA + H₂O ⇌ H₃O⁺ + A⁻
The value of the equilibrium constant is given by
The greater the value of
For most weak acids,
We convert these exponential numbers into a normal range by taking their negative logarithm.
The operator
So
For most weak acids,
Thus, the smaller the value of
Bases
When you dissolve a base in water, it reacts with the water in an equilibrium reaction.
B + H₂O ⇌ BH⁺ + OH⁻
The value of the equilibrium constant is given by
The greater the value of
For most weak acids,
For most weak acids,
The smaller the value of
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