Goals for Chapters 10 and 24

Goals for Chapters 10

  1. Identify conditions under which the Debye-Huckel limiting law and extended Debye Huckel law apply, and use them to calculate mean activity coefficients.
  2. Sketch trends in activity coefficient versus ionic strength and show how trends vary with the charges on the ions..
  3. Use the Nernst equation to solve for E, Eo, molalities, or the mean activity coefficient, given the other three quantitites.
  4. Calculate E ( Eo) from DrG (DrGo or K) and vice versa.
  5. Write cell reactions given standard desceriptions of cells, and vice versa.
  6. Calculate the standard cell potential from electrode potentials, and vice versa.
  7. Calculate the mass (moles) exchanged at an electrode from the current, or the deposition time, given the other 2 quantitites and a description of the cell.
  8. Use E to determine which way a reaction must proceed to reach equilibrium.

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    Goals for Chapters 24

    1. Compute limiting molar conductivities for salts/acids/bases from the limiting molar conductivities of the ions, and vice versa. Compute resistance (conductance) molar conductivity, and concentration of an electrolyte solution, given two other quantities.
    2. Convert between molar conductivities and ionic mobilities and diffusion coefficients.
    3. Rationalize and predict differences in ionic mobilities (or molar conductivities or diffusion coefficients) on the basis of ionic charge and size, including special effects due to hydrogen bond networks.
    4. Compute diffusion coefficient, diffusion time, and average distance diffused, given two of these three quantities.
    5. Compute diffusion coefficient, molecular diameter, and average jump intervals, given two of these three quantities.
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