What is a solution considered when it has an equal number of hydrogen and hydroxide ions?

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What is a solution considered when it has an equal number of hydrogen and hydroxide ions?

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Answer 1 · 2016-09-06T15:41:13

It is considered to be neutral with respect to $pH$ .

Explanation:

$2H_2O rightleftharpoons HO^(-) + H_3O^+$

As you know, water undergoes autoprotolysis as represented in the given reaction. Under standard conditions, $[HO^-]=[H_3O^+]$ , which specifies a condtion of neutrality. To put numbers to this equation, $K_w=[H_3O^+][""^(-)OH]=10^-14$ .

How do I use this equation to define $pH$ ?

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What is a solution considered when it has an equal number of hydrogen and hydroxide ions?

1 Answer

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