Bleach is everyone's goto for cleaning up spills of biological fluids (deliberate or not). The conjugate acid of the active

Question

Bleach is everyone's goto for cleaning up spills of biological fluids (deliberate or not). The
conjugate acid of the active component in bleach is hypochlorous acid, HOCI(aq), which, it
turns out, is rather a weak acid.
(a) State the expression for the ionic product constant of water, Kw. (1 point)
(b) The active component of household bleach is sodium hypochlorite, NaOCI(aq), at a
concentration of 0.705 mol dm³. The hypochlorite ion, OCI (aq), is a weak base.
OCI (aq) + H₂O(1) --> HOCI(aq) + OH(aq)
(i) The pka value of HOCI(aq) is 7.52. Determine the Kb value of OCI-(aq) assuming a
temperature of 298 K.
(ii) Determine the concentration of OH-(aq), in mol dm-3, at equilibrium and state one
assumption made in arriving at your answer other than a temperature of 298 K.
(iii) Calculate the pH of the bleach.

Kunduz · Accepted Answer

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