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Calculate Keq from pKa
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\n \n \n The negative logarithm of the acid dissociation constant (Ka).\n
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\n \n \n Standard temperature is 298.15 K (25°C).\n
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\n Equilibrium Constant (Keq): \n
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Intermediate Values:
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Ka = 10-pKa
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R (Gas Constant) = 8.314 J/mol·K
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F (Faraday’s Constant) = 96485 C/mol
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pKa vs Keq at Standard Temperature
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| pKa | Ka (10-pKa) | Keq (Nernst Equation) | Acid Strength |
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What is Keq from pKa?
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Keq (Equilibrium Constant) calculated from pKa is a fundamental concept in acid-base chemistry. It provides a quantitative measure of the extent to which an acid dissociates in water. The pKa value, defined as the negative logarithm of the acid dissociation constant (Ka), is widely used in chemical calculations because