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Topic: ammonia and conjugate acid  (Read 3412 times)

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Offline ninto

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ammonia and conjugate acid
« on: June 05, 2009, 09:10:23 PM »
Hello, I've just had an intro to acid/base conjugates.  For most examples, a weak acid/base had a strong conjugate, which makes sense to me.
But then, I was told that ammonia is a weak base, and that it's conjugate acid, ammonium ion is a weak acid. Is this correct? How can both conjugates be weak?

Offline AWK

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Re: ammonia and conjugate acid
« Reply #1 on: June 06, 2009, 02:20:53 AM »
extremely
Quote
weak acid/base had a strong conjugate
.
Medium weak acid has a medium weak conjugate since
Ka x Kb = Kw
AWK

Offline ninto

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Re: ammonia and conjugate acid
« Reply #2 on: June 07, 2009, 10:13:08 PM »
Thanks, so they are both just 'average' in strength?? not both weak?

Offline Borek

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Re: ammonia and conjugate acid
« Reply #3 on: June 08, 2009, 03:01:03 AM »
Average in a sense 'there are much stronger and much weaker'.
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