October 17, 2021, 08:36:44 PM
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Topic: Calibration of the ORP electrode  (Read 761 times)

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Offline Borek

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Re: Calibration of the ORP electrode
« Reply #15 on: September 26, 2021, 05:28:36 AM »
This is tough, I am not convinced "undissociated" an "complexed" means exactly the same in this context. Yes, in both cases we speak about an entity with a formula CuSO4 (give or take some water molecules), but whether they are identical - I don't know.

NaOH is considered a strong base, which is commonly assumed to mean "fully dissociated". Yet the stability constant Na+/OH- is around 0.63, which means in 0.9 M NaOH almost exactly half is in the form of NaOH complex.
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