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Madison Hurst
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Postby Madison Hurst » Mon Dec 03, 2018 12:59 pm

Why is hydronium sometimes referred to as H3O+ and sometimes as H+? What is the difference?

Christopher Tran 1J
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Joined: Fri Sep 28, 2018 12:15 am

Re: Hydronium

Postby Christopher Tran 1J » Mon Dec 03, 2018 1:20 pm

H3O+ and H+ in an aqueous solution basically mean the same thing, as H+ in water is the hydronium ion. Both are used interchangeably, H+ is just the shorter way.

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Re: Hydronium

Postby kateminden » Mon Dec 03, 2018 2:46 pm

H+ in water (an aqueous solution) is the same thing as H3O+, the hydronium ion.

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Re: Hydronium

Postby Andrewwiner4D » Mon Dec 03, 2018 4:36 pm

Both essentially the same thing but when working in an aqueous solution, it is easier the refer as H30+ because water is the proton acceptor.

Aria Soeprono 2F
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Joined: Fri Sep 28, 2018 12:27 am

Re: Hydronium

Postby Aria Soeprono 2F » Mon Dec 03, 2018 4:49 pm

H+ is a hydrogen ion by itself, while hydronium is a hydrogen ion bonded to a water molecule. When calculating pH, however, you can use [H+] and [H3O] interchangeably, and still get the right answer.

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