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Calculate the pH and pOH of the solutions with the following hydrogen ion or hydroxide ion concentrations. Indicate which solutions are acidic, basic, or neutral. [OH–] = 9.21×10^-9 M______ pH______ pOH

Respuesta :

Answer

pOH=8.036

pH=5.964

The solution is acid

Procedure

We need to consider the following when we speak about pH and pOH

As we have a concentration of [OH-] ions, we will first calculate the pOH

[tex]pOH=-log[9.21\times10^{-9}]=8.0357[/tex]

Then we calculate the pH assuming the solution is at 25 C.

[tex]pH=14-pOH=5.9642[/tex]

We can see that as the pH of this solution is lower than 7, the solution will be acid.

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