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(B) The $pH$ of a solution decreases with an increase in the concentration of $H^{+}(aq)$ ions.This is because $pH$ is defined as the negative logarit

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The $pH$ decreases.

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(B) The $pH$ of a solution decreases with an increase in the concentration of $H^{+}(aq)$ ions.This is because $pH$ is defined as the negative logarithm of the hydrogen ion concentration,expressed as $pH = -\log[H^{+}]$.As the concentration of $H^{+}(aq)$ ions increases,the value of the negative logarithm increases,which mathematically results in a lower $pH$ value.Therefore,a higher concentration of $H^{+}(aq)$ indicates higher acidity and a lower $pH$ value.

What effect does an increase in the concentration of $H^{+}(aq)$ in a solution have on the $pH$ of the solution?

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