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Ammonia, NH3, with pKb = 4.76 is a better base than

monohydrogen carbonate, HCO3- (from baking soda), with pKb,HCO3- = 7.64, which by the way is also a very weak acid: pKa = 10.25.

Sodium ion, Na+ (from baking soda), is neutral, hence of no importance.

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14y ago

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