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Old Jun 29th 2017, 07:01 PM   #1
ktmed
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Why is NH3 a base in water?

The reaction of NH3 +H2O --> NH4 +OH. Since NH4 accepted a proton from water, it's a Bronsted Lowry base and and becomes a conjugate acid which is weak.
I'm confused why did H20 in this case act as an acid and NH3 acts as a base, can someone please explain?
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Old Jun 29th 2017, 09:45 PM   #2
Muzzaza
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Depending on reagents present, water can be seen as both a base and an acid.
Its a phenomena called amphoterism.
NH3 is generally seen as a base.
So in the case of an arbitrary acid, water would react as a base.
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