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The pH of a substance increases when there is an increase in the concentration of hydroxide ions (OH-) relative to hydrogen ions (H+). This can be due to the addition of a base or the removal of an acid. When the balance between H+ and OH- shifts towards OH-, the pH increases, indicating a more alkaline or basic environment.

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Which causes pH of a solution to increase?

Adding a base


What causes the pH of solution to increase?

Adding a base will make the pH go up (increasing of OH- ions concentration).


What causes the pH of a solution to raise?

An increase in the concentration of OH- ions.


If a substance is added to water and the pH decreases is that substance an acid or a base?

pH of 1 to < 7 indicates an acid pH of >7 to 14 indicates a base pH of 7 indicates water


Which has the greater concentration of hydrogen ions a substance with a pH of 5 or a substance with a pH of 4?

A substance with a pH of 4 has a greater concentration of hydrogen ions compared to a substance with a pH of 5. The pH scale is logarithmic, so each decrease in pH by 1 represents a tenfold increase in hydrogen ion concentration.


Which causes the pH of a solution of a solution to increase?

Adding a base


What causes pH of a solution to increase?

Adding a base will make the pH go up (increasing of OH- ions concentration).


What is the cause of pH to increase?

One common cause of an increase in pH is the addition of a base or alkali substance to a solution. This can lead to the release of hydroxide ions, which in turn can raise the pH level of the solution. Other factors, such as bacterial activity or photosynthesis, can also contribute to an increase in pH through the release of basic byproducts.


What causes the pH of a solution of a solution to increase?

Adding a base will make the pH go up (increasing of OH- ions concentration).


Is a substance with a pH of 14 a strong base?

The pH is the cologarithm of the activity of hydrogen ion in solutions; pH 14 is the pH of a strong base.


What causes low pH levels in a solution?

Low pH levels in a solution are caused by an increase in the concentration of hydrogen ions (H) in the solution. This increase in hydrogen ions makes the solution more acidic, resulting in a lower pH level.


What causes pH levels to increase?

There are several ways to increase the pH: * Adding a basic or alkali substance, e.g. NaOH, or a basic salt, e.g. CaCO3. * Consumption of the acid in a solution will cause the pH levels to increase (e.g Acid reacting with a metal) * The solution can be absorbing ammonia from the air * Temperature changes can affect pH * Electrolysis of some solutions can produce lowered pH values in the solution