Question #96f09
1 Answer
Aug 6, 2016
When it can act as a Bronsted acid (donates a proton) or a Bronsted base (accepts a proton)
Explanation:
amphiprotic substances are ions or molecules that can behave as a Bronsted acid or base.
i.e. water
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water is acting as an acid as it donates a proton to ammonia
#H_2O_"(l)" + NH_(3 "(aq)") rarr OH^(-)._"(aq)" + NH_4^+._("(aq)")# -
Water is acting as a base when it accepts a proton from hydrochloric acid.
#H_2O + HCl rarr H_3O^+ + Cl^-#
Another example of an amphiprotic substance is dihydrogen phosphate,
