Instruction
When reading Chapter 14 pay particular attention to the following concepts:
Define anode, cathode, anion, cation, salt-bridge / porous cup, electrolyte, external circuit, power supply, voltaic cell and electrolytic cell
Identify the similarities and differences between the operation of the voltaic and electrolytic cells
Predict and write the half-reaction equation that occurs at each electrode in an electrochemical cell
Recognize that predicted reactions do not always occur – use diagnostic tests to determine products
Explain that the values of standard reduction potential are all relative to 0 volts, as set for the hydrogen electrode at standard conditions
Calculate the standard cell potential for electrochemical cells
Predict the spontaneity or non-spontaneity of redox reactions, based on standard cell potential, and the relative positions of half-reaction equations on a standard reduction potential table
Calculate mass, amounts, current and time in single voltaic and electrolytic cells by applying Faraday’s law and stoichiometry