### Explain what is the ph value of water containing

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What is the pH value of water containing 0.005 M of an acid with a acid dissociation constant of 0.001 M. The dissociation of the acid in water can be represented as: HA <-> H+ + A-

Ka=[H][A]/[HA]

Kw=[OH][H]=10^-14

Mass balance equation: Cta=[HA]+[A](MBE)

Charge balance equation: CB = [H]=[A-]+[OH-]

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