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why did (naoh) change his color when we mixed with (hcl)?
A Hydroxide is not a ion... OH- is one -- Helios89 10:35, 2 April 2006 (UTC)
well... it depends on how u define the word hydroxide. different people may have different perception of its meaning. in the article, hydroxide refers to the ion containing O and H atoms with a negative charge(OH-). while some of us might have understood it as any alkali substances that have a pH value greater than 7. perhaps "ion" should be added to the title to avoid confusion?
A physics professor and his assistant are working on liberating negatively charged hydroxyl ions, when all of a sudden, the assistant says, "Wait, Professor! What if the salicylic acids do not accept the hydroxyl ions?" And the professor responds, "That's no hydroxyl ion! That's my wife!"
I don't get it :-( -- Slashdevslashtty 02:40, 25 April 2006 (UTC)
I don't get it either...
I get it, and its the worst joke I've ever heard. I'm sad
It's a joke from an early episode of the Cartoon Network cartoon "Dexter's Laboratory". It's not funny, and it's not very original. cobalt91 00:03, 14 September 2006 (UTC)
For those of us who don't get it, will someone please explain! Even if it is bad, I'm the kind of person who wants to know :-( Poobarb 00:33, 3 September 2006 (UTC)
I think the joke is that there is nothing to get. ArcherMan86 ( talk) 03:48, 3 April 2011 (UTC)
Hey, isn't the molar mass of OH- about 17 g/mol, not 19?? —The preceding unsigned comment was added by Jschwart37 ( talk • contribs) 06:53, 4 March 2007 (UTC).
I think the molar mass is still wrong. If hydrogen is approximately 1.01 and oxygen 16 then that makes it 17.01 g mol-1. Even being more precise (and assuming the pages on oxygen and hydrogen are correct), it must have a mass of a least 17.00734g mol-1. A minor niggle I know, but these things do affect calculations. 78.86.129.231 18:46, 15 October 2007 (UTC)
This article has to be completety reviewed. The correct chemical formula is HO- and not OH-. This a common mistake, yet, wikipedia should not have these mistakes. —Preceding unsigned comment added by 193.136.24.66 ( talk) 17:03, 11 August 2009 (UTC)
That is odd... every chemistry text I have ever read has referred to hydroxide as OH-, I have never seen it wrote as HO-. I don't think it is a mistake unless 98% of the people on this planet are making this same mistake (including the people who write chemistry textbooks, who have PhD's in chemistry...)
No, he is right, the correct formula for the hydroxide ion is HO-. If you understand anything about formal charges and lewis structures you would understand why. A chemistry professor that I know who has a Ph.D also uses HO-. The textbooks that go by "OH-" are trying to follow "tradition." They are wrong however. —Preceding unsigned comment added by 98.70.58.59 ( talk) 14:13, 12 May 2011 (UTC)
Whether or not HO- or OH- is correct is fairly irrelevant to wikipedia. Wikipedia is made to reflect the common usage, not the correct usage, and therefore the proper usage on wikipedia is OH-. As an aside, I disagree with your professor, HO- is slightly more correct than OH-, but neither are as correct as [OH]-, since HO- promotes the ridiculous idea that the oxygen atom somehow "owns" the negative charge. This would result in a fairly substantial error in the stability of the ion if it were taken as true. Equilshift ( talk) 21:53, 29 July 2014 (UTC)
Completely! Petergans ( talk) 22:53, 1 January 2011 (UTC)
It is an ambiguous definition. There are several ions of hydrogen possessing sharply different properties. Incnis Mrsi ( talk) 06:43, 14 March 2011 (UTC)
Incnis Mrsi seems to be coming from an area other than chemistry. In chemistry the term hydrogen ion is universally understood to mean H+, which in solution is solvated. There is no ambiguity in the context of this article, which is about the chemistry of the hydroxide ion. There is no need to specify cation as H- is known as the hydride ion. Petergans ( talk) 09:44, 14 March 2011 (UTC)
What was wrong with these links removed by this [1] edit? Incnis Mrsi ( talk) 06:43, 14 March 2011 (UTC)
What was wrong with the text "can be protonated to form a water molecule" removed by this [2] edit? Incnis Mrsi ( talk) 06:43, 14 March 2011 (UTC)
C(OH)4 is hypothetical- the dissociation in water is therefore hypothetical- it can be envisaged- but a rewording and a reference are required. Silicic acid cannot be SiO2(OH)2, there is an ion [SiO2(OH)22–, but that isn't quite the same thing. I think this is a misreading of the reference. Axiosaurus ( talk) 14:59, 19 November 2014 (UTC)
The article refers to the "self-ionization reaction:
H+ + OH− ⇌ H2O,"
... but shouldn't it be written the other way? As in:
H2O, ⇌ H+ + OH−
?
I'm not an expert in chemistry, so I don't want to make this change without consulting someone who knows better, but it seems to me like it should be written the second way for two reasons. First, I've always learned to write the equilibrium constant as the product of the concentrations of the "products" (i.e. molecules on the right side of the equation) divided by the product of the concentrations of the "reactants" (i.e. the molecules on the left side of the equation), substituting 1 for water or for solids, since there is always plenty of those. If we go by this rule, the equilibrium constant for the reaction as it is currently written would be Kw = 1/([H+][OH−][H+]), rather than [H+][OH−][H+]. Secondly, this is referred to as a self-ionization reaction, and even though the reaction can proceed both ways, we usually think of the "forward" direction as being from left to right, and the "reverse" direction as being from right to left. If we're calling it a self-ionization reaction, shouldn't the "forward" direction be the direction in which water actually ionizes itself, rather than un-ionizing itself?
75.118.5.222 ( talk) 00:13, 5 July 2016 (UTC)
"The hypothetical compound C(OH)4 (orthocarbonic acid or methanetetrol) is unstable in aqueous solution:" Is it appropriate to use "is" when referring to a hypothetical compound? I would normally use "would be" in this context. The use of "is" implies, at least to me, that this instability has been observed, not merely predicted. — Preceding unsigned comment added by Chrisbaarry ( talk • contribs) 12:28, 29 August 2017 (UTC)
This article has been badly hacked away from it's original state. The article does not fit the lucid form of element or compound articles found elsewhere in Wikipedia. Minor details of use are pasted into the summary and so on. Details are unordered, definitions are partial, details and words are given before defined. Absolutely detestable writing.
This article has been attacked. It was not this way last time I looked at it. — Preceding unsigned comment added by 2600:8806:400:51F0:60EC:E90F:276E:96EC ( talk) 23:28, 11 November 2017 (UTC)
An editor has asked for a discussion to address the redirect Bioxide. Please participate in the redirect discussion if you wish to do so. signed, Rosguill talk 21:45, 19 May 2019 (UTC)