Download - Repaso de tests charlie acidos y bases
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The Bronsted-Lowry Theory:
An important concept in Bronsted-Lowry Theory involves the relative strengths of acid-base pairs.
Weak acids have strong conjugate bases.
Weak bases have strong conjugate acids.
The weaker the acid or base, the stronger the conjugate partner.
The reason why a weak acid is weak is because the conjugate base is so strong it reforms the original acid.
Similarly for weak bases.
Since NH3 is a weak base, NH4+ must be a strong acid. NH4+ gives up H+ to reform NH3.
Compare that to NaOH→ Na+(aq) + OH-(aq)
Na+ must be a weak acid or it would recombine to form NaOH
Remember NaOH ionizes 100%. NaOH is a strong base.