Ammonia is a weak base because it produces hydroxide (OH-) ions in solution.
Ammonia is a weak base because it produces hydroxide ions (OH-) in solution.
When ammonia dissolves in water, it accepts a proton from water, forming the ammonium ion (NH4+), and leaves hydroxide ions behind. This partial dissociation results in a small concentration of hydroxide ions, causing the solution to be slightly basic.
Unlike strong bases, which fully dissociate and release a large number of hydroxide ions, ammonia's limited ability to produce hydroxide ions makes it a weak base.
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