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Hydroxide Ion Concentration

APCHEM-LX4OYU

If a solution has a hydronium concentration of $2.0 × 10^{-6}$, what is its hydroxide ion concentration and the acidity of the solution?

A

$5 × 10^{-9}$

Acidic.

B

$5 × 10^{-8}$

Basic.

C

$1.2 × 10^{-6}$

Acidic.

D

$1.2 × 10^{-5}$

Basic.