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Chemistry Forums for Students => Inorganic Chemistry Forum => Topic started by: bzibziak on December 05, 2006, 03:18:04 PM

Title: the reaction of potassium azide
Post by: bzibziak on December 05, 2006, 03:18:04 PM

Does anybody know how will potassium azide (KN3) react with hydrazoic acid. I have to do an exercise and I need this reaction. Thanks for some help. and sorry for my english:)

Title: Re: the reaction of potassium azide
Post by: DevaDevil on December 05, 2006, 04:53:07 PM

no problem with your english :)

an azide is the conjugated base of hydrazoic acid.

I would look into acid-base chemistry if I were you

Title: Re: the reaction of potassium azide
Post by: woelen on December 06, 2006, 07:18:36 AM

There will not be a reaction, your solution will obtain an equilibrium of HN3 and N3(-) ions.

If you mean reaction of hydrochloric acid with KN3, then you'll see that most of the ionized HCl will react to form mostly non-ionized HN3. HN3 is only a weak acid.

Title: Re: the reaction of potassium azide
Post by: AWK on December 06, 2006, 07:32:16 AM

A buffer solution is formed

Title: Re: the reaction of potassium azide
Post by: bzibziak on December 06, 2006, 08:35:03 AM

woelen- thanks for help. I think you're right and there won't be any reaction. I suppose there is error in that exercise.

Title: Re: the reaction of potassium azide
Post by: Borek on December 06, 2006, 08:47:35 AM

Quote from: bzibziak on December 06, 2006, 08:35:03 AM

woelen- thanks for help. I think you're right and there won't be any reaction. I suppose there is error in that exercise.

No error. Acid/base equilibrium will be established. That means acid/base reaction will take place.