CHM 2210C    Chapter 2 Sample Exam Answers              

 

Chapter 2 Part H: Acid/Base Definitions   5 points

 

From Chapter 2 define the concept of acidity and basicity as covered in sections 2.7, 2.10, and 2.11:

 

  1. Bronsted-Lowry Acid : donates hydrogen ions (H+) or protons

           (proton donar)

 

 

 

2. Bronsted-Lowry Base: accepts hydrogen ions (H+) or protons

                   (proton acceptor)

 

 

 

 

     3. Lewis Acid:  A substance that accepts an electron pair.

 

 

     4. Lewis base: A substance that donates an electron pair

 

 

 

 

5. pKa  :  = - log Ka   (The smaller the pKa  the stronger the acid)