What is the hydroxide-ion concentration of an aqueous solution having a hydrogen-ion concentration of 4.75 × 10^-5 mol/L?

Name: What is the hydroxide-ion concentration of an aqueous solution having a hydrogen-ion concentration of 4.75 × 10 -5 mol/L?
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Quizplus · Accepted Answer

The product of hydrogen-ion concentration and hydroxide-ion concentration in water is always 1.0 × 10^-14 at 25°C. Using this, the hydroxide-ion concentration is calculated as (1.0 × 10^-14) / (4.75 × 10^-5) = 2.10 × 10^-10 mol/L.

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