Respuesta :

kenmyna
 The  hydrogen ion concentration  is  calculated  as follows

Ph  +  POh  =14
ph= 14-9.85= 4.15

anti  -H+

=anti (-4.15)  = 7.07 x10^-5  moles per liter

Answer: The hydroxide ion concentration in aqueous solution is [tex]1.412\times 10^{-10}M[/tex]

Explanation:

To calculate the hydroxide ion concentration, we use the equation:

[tex]pOH=-\log[OH^-][/tex]

We are given:

pOH = 9.85

Putting values in above equation, we get:

[tex]9.85=-\log[OH^-][/tex]

[tex][OH^-]=10^{-9.85}=1.412\times 10^{-10}M[/tex]

Hence, the hydroxide ion concentration in aqueous solution is [tex]1.412\times 10^{-10}M[/tex]

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