When HCl(aq) is exactly neutralized by NaOH(aq), the hydrogen ion concentration in the resulting mixture is
a. always equal than the concentration of the hydroxide ions
b.sometimes greater and sometimes less than the concentration of the hydroxide ion
c. always greater than the concentration of the hydroxide ions
d. always less than the concentration of the hydroxide ion.

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  1. Let's reason this out. If the HCl EXACTLY neutralizes NaOH, that MUST mean that there is no excess of H^+ and no excess of OH^-. And no excess of either ions means.......

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  2. The correct ans. will be (c)- always equal to the concentration of hydroxide ions.

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