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Answer:
the solution is acidic as its ph has already exceeded the neutral level
[tex]1.1 X 10^-9 M[/tex] is the [H] in a solution with a pH of 9.92.
pH is the quantitative measure of the acidity or basicity of aqueous or other liquid solutions.
The pH of a solution is usually found by the following expression:
pH=-log [[tex]H^+[/tex]]
Therefore, to find the concentration of [tex]H^+[/tex] we can rearrange this expression and thus,
= [[tex]H^+[/tex]] = [tex]10^-^{pH}[/tex]
= [[tex]H^+[/tex]] = [tex]10^-^{9.92}[/tex]
=[tex]1.1 X 10^-9 M[/tex]
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