which of these correctly defines the ph of a solution? the negative log of the hydronium ion concentration…

which of these correctly defines the ph of a solution? the negative log of the hydronium ion concentration the log of the hydronium ion concentration the negative log of the hydroxide ion concentration the log of the hydroxide ion concentration
Answer
Brief Explanations:
The pH of a solution is defined as the negative logarithm (base - 10) of the hydronium ion concentration, expressed as $pH =-\log[H_3O^+]$.
Answer:
the negative log of the hydronium ion concentration