How to tell if a species is a Bronsted acid, base, or both

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SUMMARY

This discussion focuses on classifying chemical species as Brønsted acids, bases, or both based on their ability to donate or accept protons. The species in question include HI, CH3HOOH, H2PO4-, and HSO4-. According to Brønsted definitions, an acid is defined as a proton donor, while a base is a proton acceptor. Understanding these definitions is crucial for accurately categorizing the given species.

PREREQUISITES
  • Understanding of Brønsted-Lowry acid-base theory
  • Familiarity with chemical species and their proton transfer capabilities
  • Knowledge of chemical notation and species representation
  • Basic grasp of acid-base reactions
NEXT STEPS
  • Study the characteristics of strong and weak acids and bases
  • Learn about conjugate acid-base pairs
  • Explore examples of Brønsted acids and bases in organic chemistry
  • Investigate the role of pH in acid-base classification
USEFUL FOR

Chemistry students, educators, and anyone interested in understanding acid-base theory and classification of chemical species.

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Homework Statement
Identify the following species as a Bronsted acid, base, or both

a) HI
b) CH3HOOH
c) H2PO4-
d) HSO4-

I don't need the answers-- those are in the back of the book. I just don't understand how to classify each species. Thanks in advance for any help!
 
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What are the Brønsted acid/base definitions?
 
Acid is a proton "donor", Base is a proton "acceptor".
 

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