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Topic: ph level  (Read 14055 times)

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Offline tennis freak

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Re: ph level
« Reply #15 on: May 09, 2006, 09:28:54 PM »
nitrate itself has no pH since it doesn't have an H+ or an OH- meaning that it can't be an acid or a base which means you can't measure the pH or the pOH
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Offline mike

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Re: ph level
« Reply #16 on: May 09, 2006, 10:30:02 PM »
H and OH are not the only things that can define an acid or base.
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Offline tennis freak

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Re: ph level
« Reply #17 on: May 09, 2006, 10:31:38 PM »
really what else defines an acid or a base then? i always thought is was the H and OH in the compound
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Offline rctrackstar2007

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Re: ph level
« Reply #18 on: May 09, 2006, 10:40:28 PM »
H and OH are not the only things that can define an acid or base.

well i'm glad i've learned this now

i'll be checking out that site to figure out about it cuz i was under the impression that for a pH you had to have H+ ions and pOH you must have had OH- ions  :P
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Offline mike

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Re: ph level
« Reply #19 on: May 09, 2006, 10:45:11 PM »
Quote
really what else defines an acid or a base then? i always thought is was the H and OH in the compound

Well you can try looking up things like acid/base definitions: Bronsted-Lowry compared with Lewis, these are the main ones I use anyway.

Borek's website is also a good place to learn this type of thing (check out his signature)
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Offline Will

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Re: ph level
« Reply #20 on: May 10, 2006, 12:47:06 PM »
Which nitrate: ammonium, potassium, magnesium one?

Exactly! It depends which nitrate salt gangsta was talking about.
Ammonium will be slightly more acidic than potassium salts for example.
Also, the pH depends how much salt you have and in how much water (ie concentration).

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