Question

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Question 6 of 10
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At 25 °C, what is the hydroxide ion concentration, [OH-], in an aqueous solution with a hydrogen ion concentration of
[H"]=1.7 x 10-6 M?
[OH-] =

Answer 1

The hydroxide ion concentration, [OH-] : 6.31 x 10⁻⁹ M

Further explanation

pH=- log [H⁺]

pH+pOH= 14

A hydrogen ion concentration of [H"]=1.7 x 10⁻⁶ M

`\tt pH=-log[1.7* 10^(-6)]\\\\pH=6-log~1.7\\\\pH=5.8`

`\tt 5.8+pOH=14\\\\pOH=8.2\\\\ (OH^-)=10^(-8.2)=6.31* 10^(-9)`