We are asked to calculate the pH of 0.10 M HOCl (Ka = 3.5x10-8) solution.
Since HOCl has a low Ka value, it’s a weak acid.
Remember that weak acids partially dissociate in water and that acids donate H+ to the base (water in this case).
The dissociation of HA is as follows:
HOCl(aq) + H2O(l) ⇌ H3O+(aq) + OCl–(aq); Ka = 3.5x10-8
Calculate the pH of the following solutions (work must be shown). Include the balanced equation for the acid dissociation reaction
0.10 M HOCl (Ka = 3.5x10-8)
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