Work Out Charges

Ask the students to look at structures and consider what charge different parts of the molecules will have when they are protonated and deprotonated (eg. COOH to COO- is neutral to negative, and NH3+ to NH2 is positive to neutral, but can have OH groups that become O- sometimes, depending on the pKa). Use a table of amino acid structures and pKa values, and get them to work out charges at the pH of interest.

Topic:

  • Inorganic Chemistry
  • Acid-Base Chemistry

Strategy:

  • Mode of Delivery
  • Explanation
  • Active Learning
  • Practice Problems
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