maddycat8657 maddycat8657
  • 12-05-2018
  • Chemistry
contestada

The ionization constant for water (kw) is 9.614*10-14 at 60°c. calculate [h3o+], [oh−], ph, and poh for pure water at 60°c.

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Dejanras
Dejanras Dejanras
  • 24-05-2018
The Kw (the ionic product for water) at 60°C is 9.614·10⁻¹⁴ mol²/dm⁶.
Kw = [H
₃O⁺] · [OH⁻].
[
H₃O⁺] = [OH⁻] = √9.614·10⁻¹⁴ mol²/dm⁶.
[H
⁺] = [OH⁻] = 3.1·10⁻⁷ mol/L.
pH = -log[H
₃O⁺].
pH = -log(
3.1·10⁻⁷ mol/L).
pH = 6.5; potential of hydrogen of neutral solution at 60°C.
pOH = -log
[OH⁻].
pOH = 6.5.
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