Join IDNLearn.com today and start getting the answers you've been searching for. Our experts are ready to provide prompt and detailed answers to any questions you may have.
The pOH of pure water at 40 degree C is 6.8, then the hydronium ion concentration in pure water at this temperature is 6.3 × 10⁻⁸M.
Relation between the pH and pOH will be represented by the following equation:
pH + pOH = 14
Given that, pOH of water = 6.8
Then pH will be pH = 14 - 6.8 = 7.2
We know that, pH = -log[H⁺]
[H⁺] = [tex]10^{-pH}[/tex]
[H⁺] = [tex]10^{-7.2}[/tex] = 6.3 × 10⁻⁸M
Hence concentration of hydronium ion at that temperature is 6.3 × 10⁻⁸M.
To know more about pH & pOH, visit the below link:
https://brainly.com/question/24595796
#SPJ1