Acid-base equilibria
Read our general notes on Risk Assessment
What's the value of Ka for HCl? It is not in the Nuffield data book.
No value is given in the Book of Data for the dissociation constant for hydrochloric acid because, as a strong acid, it is fully ionised in aqueous solution.
Ka values apply to the dissociation of weak acids and can be used to calculate the pH of solutions of solutions these acids.
Shirley
Risk assessment
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Ka value HCl is about 1.0 x 107 mol/dm3 at 298K.
6M HCl is about 99.996% dissociated.
Kim McDougall 27 November 2005
updated: 21 August 2003
