Why the pH value does not change?

by Johnny Leong
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Johnny Leong
Johnny Leong is offline
Oct20-03, 08:17 AM
P: 49
When the CuO (copper oxide) is put into water, it does not dissolve in water. But why the pH value of the water does not change?
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Oct20-03, 11:28 AM
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pH of a solution is measured by H3O+ concentration , therefore , the value of the water won't change cause no H3O+ were added or taken .
Monique is offline
Oct20-03, 11:51 AM
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P: 4,622
pH might change due to a redox reaction, catalyzed by the metal, but you say it doesn't dissolve, so no reaction is taking place (with dissolve I mean ions coming free).

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