Problem: Which of the following species is amphoteric? Answer HPO42- CO32- HF NH4 None of the above are amphoteric

FREE Expert Solution

Recall that an amphoteric compound means it can act as either an acid or a base.  

  • as acid → can donate a proton H+
  • as base → can accept a proton H+

Most amphoteric compounds contain a hydrogen (acid side) and a negatively-charged atom (base side)

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Problem Details

Which of the following species is amphoteric? 

Answer 

HPO42- 

CO32- 

HF 

NH4 

None of the above are amphoteric

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