if this could be explained to me better, that would be great! thanks Model 2: lo
ID: 883089 • Letter: I
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if this could be explained to me better, that would be great! thanks
Model 2: lons are Potential Acids or Bases. All anions are potential bases Cl"(aq) + H20(1) HC1(aq) + OHtaq) NO2-(aq) H2O(1) OHTaq) + HNO2(aq) + All cations are potential acids: NH4+(aq) + H20(1) NHy(aq) + H30.(w) Additional things to remember . Any molecule or ion which contains H is a potential acid . It is possible for a given che It is possible for a given chemical species to be a potential acid and a potential base Critical Thinking Questions 7. Indicate which of the following are potential acids, potential bases, or both (potential acid and potential base). a) Al b) CH,NH, c HPO, d) F e) NH f) H2OExplanation / Answer
7)
(a) Al+3 is an acid. according to lewis theory all cations are electron pair acceptor . so it is acid.
Al+3 in water gives H+ ion also . so it is acid
Al+3 + 3 H2O ----------------------> Al(OH)3 + 3H+
(b) CH3NH3+ is an acid it gives H+ ion in the ionisation
CH3NH3+ + H2O ----------------------> CH3NH2 + H3O+
(c) HPO4-2 is an acid . it gives H+ ion in the ionisation with water
HPO4-2 + H2O -----------------> PO4-3 + H3O+
(d) F- is a base . in the ionisation process it gives OH-
F- + H2O -----------------> HF + OH-
(e) NH4+ is an acid in the ionisation it gives H+ ions
NH4+ + H2O ----------------> NH3 + H3O+
(f) H2O is both acid and base. that means amphoteric . which furnishes both H+ and OH- ions in the ionisation
H2O + H2O -------------------> H3O+ + OH-
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