Use the following information to answer the question.

The pH of a solution is given by the formula

pH = – log10 [H ]

where [H ] is the concentration of hydrogen ions in moles per litre (mol/L) of the solution.

If the hydrogen ion concentration, [H ], of a solution is 2.5 × 10-8 mol/L, then the pH of the solution, to the nearest tenth, is?

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