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7 October, 12:46

The pKa of HN3 is 4.7. What is its Ka? Use a scientific calculator

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  1. 7 October, 13:43
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    Ka is the equilibrium constant for the dissociation reaction of a weak acid. A weak acid is one that only partially dissociates in water or an aqueous solution. The value of Ka is used to calculate the pH of weak acids. The pKa value is used to choose a buffer when needed. Choosing an acid or base where pKa is close to the pH needed gives the best results.
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