Sodium hypochlorite dissociates in the solutions as:
NaOCl → Na+ + OCl-
OCl- is the conjugate base of HOCl
The dissociation of HOCl is as follows:
HOCl(aq) + H2O(l) ⇌ H3O+(aq) + OCl–(aq); Ka = 3.5 x 10-8
A solution of household bleach contains 5.25% sodium hypochlorite, NaOCl, by mass. Assuming that the density of bleach is the same as water, calculate the volume (in mL) of household bleach that should be diluted with water to make 500.0 mL of a pH = 10.26 solution.
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