Formula Used:
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Definition: The Dissociation Constant of Acid 1 (Ka₁) measures the extent to which acid 1 dissociates in solution. It's calculated based on the dissociation constant of acid 2 and the degrees of dissociation of both acids.
Purpose: This calculation helps chemists compare the relative strengths of two acids and understand their behavior in solution.
The calculator uses the formula:
Where:
Explanation: The formula relates the dissociation constants of two acids through their degrees of dissociation, showing how much more or less one acid dissociates compared to another.
Details: Knowing dissociation constants helps predict acid strength, pH of solutions, and reaction outcomes in chemical processes.
Tips: Enter the dissociation constant of acid 2, and the degrees of dissociation for both acids (values between 0 and 1). All values must be positive.
Q1: What is the range for degree of dissociation?
A: The degree of dissociation (α) ranges from 0 (no dissociation) to 1 (complete dissociation).
Q2: How do I find the degree of dissociation?
A: It can be determined experimentally by measuring conductivity or pH of the solution.
Q3: What units does Ka use?
A: Dissociation constants are dimensionless as they represent equilibrium concentrations.
Q4: Why is the ratio squared in the formula?
A: The square accounts for the quadratic relationship between dissociation constant and degree of dissociation.
Q5: Can I compare strong and weak acids with this?
A: Yes, as long as both acids are weak (α significantly less than 1), this comparison is valid.