Hydroxide and H+

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Helen Struble 2F
Posts: 97
Joined: Sat Aug 24, 2019 12:17 am

Hydroxide and H+

Postby Helen Struble 2F » Sun Feb 23, 2020 7:56 pm

Are hydroxide and H+ available to balance redox reactions even in neutral solutions? I know that these species are found in neutral water, but in small, equal amounts. Is there enough of each species present to use them to balance half reactions?

405318478
Posts: 90
Joined: Sat Jul 20, 2019 12:16 am

Re: Hydroxide and H+

Postby 405318478 » Sun Feb 23, 2020 9:06 pm

I haven't come across any questions that require you to balance using OH and H unless the problem specifically mentions an acidic/basic solution.

VLi_2B
Posts: 99
Joined: Sat Sep 14, 2019 12:15 am

Re: Hydroxide and H+

Postby VLi_2B » Sun Feb 23, 2020 9:08 pm

In neutral solutions, you should use H2O to balance the hydrogens.

Justin Vayakone 1C
Posts: 110
Joined: Sat Sep 07, 2019 12:19 am

Re: Hydroxide and H+

Postby Justin Vayakone 1C » Sun Feb 23, 2020 9:13 pm

Well if it's a neutral solution, that should mean the redox reaction wouldn't be using or creating any H+ or OH-. If we had to balance a redox reaction in neutral solution, we would probably be given something like this where H+ or OH- ions wouldn't be needed: Cu+(aq)+Fe(s)→Fe3+(aq)+Cu(s)

ThomasNguyen_Dis1H
Posts: 102
Joined: Fri Aug 30, 2019 12:17 am

Re: Hydroxide and H+

Postby ThomasNguyen_Dis1H » Sun Feb 23, 2020 9:16 pm

The problems should only tell you specifically whether the solution is acidic or basic. That's why you're able to add H+ or OH- freely.

405268063
Posts: 102
Joined: Thu Jul 25, 2019 12:17 am

Re: Hydroxide and H+

Postby 405268063 » Sun Feb 23, 2020 9:40 pm

I believe you only use hydroxide and H+ to balance a solution only if you are told it is acidic or basic. I would agree with everyone else that you should probably use water to balance things out in a neutral solution.

kendal mccarthy
Posts: 109
Joined: Wed Nov 14, 2018 12:22 am

Re: Hydroxide and H+

Postby kendal mccarthy » Sun Feb 23, 2020 9:51 pm

I think for neutral solutions mainly one should use h2o to make up the difference in redox reactions.


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