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The degree of dissociation of acetic acid with a formal molality m 2.41x10-3 mol/kg is a...

The degree of dissociation of acetic acid with a formal molality m 2.41x10-3 mol/kg is a 0.0829. Calculate the thermodynamic equilibrium constant K th (consider dilute solution)?

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Answer #1

Acetic acid is a weak acid and generally does not dissociate completely. But when the solution is dilute, even weak acids dissociate completely.

The equilibrium constant (K), degree of dissociation () and the molarity (c0) are related as follows:

(if you want the derivation for this formula, let me know in the comments section)

Now we can calculate K by substituting other values:

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