Mundz705id
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As the pH of a solution is changed from 3 to 6, the concentration of hydronium ions
(1) increases by a factor of 3
(2) increases by a factor of 1000
(3) decreases by a factor of 3
(4) decreases by a factor of 1000

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Lulu1991id
The answer is (4) decrease by a factor of 1000. The higher the pH, the lower the concentration of hydronium ion. And the relationship between the pH and concentration of H3O+ is pH = -lg[H3O+].
PBCHEMid

Answer : Option D) Decreases by a factor of 1000.


Explanation : When the pH of lower concentration of hydronium ion [tex] H^{+} [/tex] is increased the pH values decreases by the factor of 1000.


From, the relation of pH and the concentration of hydronium ion we can relate it easily;


pH = - log [[tex] H^{+} [/tex] ]


So, when the pH is lower the concentration of hydronium ion will increase in the solution and vice-versa.

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