ATAR Notes: Forum

VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Chemistry => Topic started by: /0 on October 08, 2009, 01:04:41 am

Title: H+ and OH-
Post by: /0 on October 08, 2009, 01:04:41 am
If you just have an aqueous electrolyte with virtually no H+ or OH- ions (neutral), will water spontaneously produce them if required? e.g.

Title: Re: H+ and OH-
Post by: TrueTears on October 08, 2009, 01:08:40 am
How would it produce the ?
Title: Re: H+ and OH-
Post by: /0 on October 08, 2009, 01:11:57 am
?
Title: Re: H+ and OH-
Post by: TrueTears on October 08, 2009, 01:12:43 am
I see but where is that in the original equation?
Title: Re: H+ and OH-
Post by: /0 on October 08, 2009, 01:13:54 am
It was just an example. You could use a few other half equations to balance, i think, e.g.

Title: Re: H+ and OH-
Post by: TrueTears on October 08, 2009, 01:18:06 am
It was just an example. You could use a few other half equations to balance, i think, e.g.


Hmm I see but where would the be in that equation?
Title: Re: H+ and OH-
Post by: Collin Li on October 08, 2009, 07:52:21 am
If you just have an aqueous electrolyte with virtually no H+ or OH- ions (neutral), will water spontaneously produce them if required? e.g.



Yes, but not nearly enough for any significant rate of reaction. (Around ~)

This half-equation needs an acidified conditions in order to operate functionally (and 1M for electrochemical series to work)

P.S.: Excited to be unveiling a great and free solution to these kind of short (but important and conceptual) questions soon!
Title: Re: H+ and OH-
Post by: NE2000 on October 11, 2009, 01:09:16 pm
It was just an example. You could use a few other half equations to balance, i think, e.g.


Hmm I see but where would the be in that equation?

Combine with the previous half equation with the H+