Formula Used:
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Definition: The dissociation constant of base 1 (Kb1) measures the extent to which base 1 dissociates in solution.
Purpose: This calculator helps determine Kb1 when you know Kb2 and the degrees of dissociation of both bases.
The calculator uses the formula:
Where:
Explanation: The relationship shows how the dissociation constants are proportional to the square of the ratio of their degrees of dissociation.
Details: Dissociation constants are crucial for understanding base strength, pH calculations, and predicting chemical behavior in solutions.
Tips: Enter Kb2, α1, and α2. Degrees of dissociation must be between 0 and 1. Kb2 must be ≥ 0.
Q1: What is the range for degrees of dissociation?
A: Degrees of dissociation range from 0 (no dissociation) to 1 (complete dissociation).
Q2: How accurate is this calculation?
A: This provides a good estimate for weak bases under similar conditions.
Q3: Can I use this for strong bases?
A: No, strong bases dissociate completely (α=1), making this formula less meaningful.
Q4: What units does Kb have?
A: Dissociation constants are typically unitless when using concentration ratios.
Q5: Why is the ratio squared in the formula?
A: The square relationship comes from the equilibrium constant expression for base dissociation.