Why the pH value does not change?

  • #1
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?
 

Answers and Replies

  • #2
Zargawee
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 .
 
  • #3
Monique
Staff Emeritus
Science Advisor
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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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