7  Electrochemistry

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7.9 Batteries

7.10 Battery Facts

7.42 Learning Outcomes

# Learning Outcomes for Chapter 7

To master the material in this chapter, a student needs to know...

1. how to assign oxidation numbers in ions and compounds
2. how to balance a redox reaction in acid and identify the number of moles of electrons transferred
3. how to identify what is oxidized and what is reduced in a redox reaction as well as what is the oxidizing agent and reducing agent
4. the differences in an anode and a cathode
5. how to determine and calculate the standard potential of a cell when only given shorthand cell notation
6. how to calculate amount of material converted during a redox reaction using electric current, time, number of moles of electrons, and the faraday constant / specifically that is utilizing → $${I\cdot t\over n\cdot F} = {\rm moles}$$
7. how to use the Nernst equation to get a cell potential under NON-standard conditions → $$E = E^\circ -{0.05916\over n}\log(Q)$$
8. the names and the differences in the three types of batteries → primary cells, secondary cells, and fuel cells
9. the sign convention for voltaic and electrolytic cells (which electrode is positive and which is negative)
10. how to classify many common batteries into the three battery types - common batteries are alkaline, NiMH, NiCad, lithium, Li-ion, lead acid
11. the basic redox chemistry (the reaction) of an alkaline cell and a lead acid battery