Understanding Acid Solutions: How to Reach 10^-14

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The discussion centers on the relationship between hydrogen ions (H+) and hydroxide ions (OH-) in water, specifically at a temperature of 25°C. It highlights that the product of their concentrations is always 10^-14, which is known as the water ion product. This value arises from the equilibrium constant of the autodissociation of water, represented by the equation H2O <-> H+ + OH-. The equilibrium constant is determined through experimental observation, emphasizing that in acidic solutions, an increase in H+ concentration leads to a corresponding decrease in OH- concentration.
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hello everyone,

i read it somewhere:--

In such a solution at 25C, the product of concentration of H+ ions with the concentration of OH- ions must be 10^-14. In an acid solution, by forcing a high concentration of H+ ions, you necessarily suppress the concentration of OH- ions.

what is this saying? how do one get 10^-14?

i am grateful for any help you can give me. many thanks.

cheers
 
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painterguy said:
what is this saying? how do one get 10^-14?

10-14 is a value of an equilibrium constant of the water autodissociation:

H2O <-> H+ + OH-

and its value is determined experimentally.

See also water ion product.
 
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