275 Final Exam Review

What does the numeral mean in Me(N)?

• Represents the concentration of Me(OH)n precipitate in solution

• Represents the concentration of Me^n+

• Represents the concentration of all soluble species containing Me^n+

As pH increases, will Mn(N)tot increase or decrease?

• Increase

• Decrease

• Not enough information

What is B (beta)?

• The ratio of hydroxide ions to complex ions for a given complex

• The equilibrium constant for a metal-ligand complex

What is the IAP? Select all that apply.

• Measures the state of equilibrium in a dissolution/precipitation reaction

• Measures the state of equilibrium in a complexation reaction

• It is analogous to Q from thermodynamics

What is the oxidant? What is the reductant

• Oxidant: HCrO4-

  Reductant: Cr(OH)3 (s)

• Oxidant: Cr(OH)3 (s)

  Reductant: HCrO4-

• Oxidant: H+

  Reductant: H2O

• Oxidant: H2O

  Reductant: H+

Which oxidant can accept electrons more easily?

• O2

• Fe3+

How do we figure out if the reaction is spontaneous?

• Calculate delta G (Gproducts - Greactants)

• Calculate delta G (G = -nFE)

What do we do if [C] =/= 1 mol/L?

• Give up

• Use the Nernst equation

What is pe?

• -log{e-}

• Can be derived using standard cell potentials (E_H^0)

• A measure of the tendency of a compound to release or acquire e-

Why is pe useful?

• Analogous to logC-pH diagrams (which is a concept we've learned)

• pe is on a log scale

• It's not really