Mole Fraction Formula:
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Definition: Mole fraction represents the number of molecules of component B in a mixture divided by the total number of moles in the given mixture.
Purpose: It helps chemists understand the composition of a mixture and predict reaction outcomes.
The calculator uses the formula:
Where:
Explanation: The degree of dissociation is divided by (1 + degree of dissociation) to calculate the mole fraction of the dissociated component.
Details: Mole fraction is crucial for understanding solution properties, calculating partial pressures, and determining equilibrium constants.
Tips: Enter the degree of dissociation (α) between 0 (no dissociation) and 1 (complete dissociation). The calculator will compute the mole fraction of substance B.
Q1: What is the range of possible values for mole fraction?
A: Mole fraction always ranges between 0 and 1, where 0 means no presence of substance B and 1 means pure substance B.
Q2: How does degree of dissociation relate to mole fraction?
A: Higher degree of dissociation leads to higher mole fraction of the dissociated species in the mixture.
Q3: Can I use this for multiple components?
A: This calculator is for binary systems. For multiple components, you would need to consider all mole fractions.
Q4: What's the difference between mole fraction and concentration?
A: Mole fraction is dimensionless and temperature-independent, while concentration depends on volume and temperature.
Q5: When would mole fraction be equal to degree of dissociation?
A: Only when the degree of dissociation approaches 0, as xB ≈ α for very small α values.