Why the pH value does not change?

In summary, pH is an important measure of the acidity or basicity of a solution in science. It affects living organisms by playing a critical role in their biochemical processes. When water is added to an acidic or basic solution, the pH value may not change significantly due to dilution. Temperature can also affect pH by altering the rate of chemical reactions. While the pH value can change due to various factors, it can also remain constant in a closed system due to equilibrium.
  • #1
Johnny Leong
48
0
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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  • #2
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
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).
 

1. Why is pH important in science?

The pH value is important in science because it is a measure of the acidity or basicity of a solution. It allows scientists to understand and control chemical reactions, as well as determine the effectiveness of certain substances.

2. How does pH affect living organisms?

pH plays a critical role in the biochemical processes of living organisms. Each organism has an optimal pH range for their bodily functions to work properly. Changes in pH can disrupt these processes and even be harmful to living organisms.

3. Why does the pH value not change when water is added to an acidic or basic solution?

Water has a neutral pH of 7, so when it is added to an acidic or basic solution, it will dilute the solution and bring the pH closer to neutral. However, the overall pH value may not change significantly depending on the concentration of the original solution.

4. How does temperature affect pH?

Temperature can affect the pH of a solution because it can change the rate of chemical reactions. This can result in the production or consumption of acidic or basic substances, altering the overall pH value of the solution.

5. Can the pH value ever change?

Yes, the pH value can change as a result of various factors such as the addition of acidic or basic substances, changes in temperature, or biological processes. However, in a closed system, the pH value can remain constant due to the equilibrium of the chemical reactions within the system.

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