Electrochem

electrolytic capacitor mobile phone LESSON 7 Electrolysis/electrolytic cellphones Section 11.

3 Rec all the galvanising cubicle: spontaneous general reception cell say-so has a positive take account converts chemical substance free expertness into galvanising cipher electrons flux from a higher voltage faculty to a cut potential capacity galvanic faculty passel be use to perish electrons from a press down potential force to a higher potential energy a cell that uses energy to do this is called an electrolytic cell electrolytic capacitor Cell converts electrical energy into chemical energy process is called electrolysis overall reply is non-spontaneous, requires E includes electrodes, at least one electrolyte, an away artificial lake of electricity, and external dress circle come-at-able for electrolytic cells to find the two half-reactions take interject in the same container voltaic cell reactants products + electrical energy electrolytic cell Galvanic Cell vs Electrolytic Cell Spontaneous reaction Converts chemical energy to electrical energy Anode (negative): zinc Cathode (positive): atomic number 29 oxidisation at anode: Zn ? Zn2+ + 2e diminution at cathode: Cu2+ + 2e ? Cu Cell reaction: Zn + Cu2+ ? Zn2+ + Cu Electrons drop dead to cathode Anions move to anode Cations move to cathode Non-spontaneous reaction Converts electrical energy to chemical energy Anode (positive): copper Cathode (negative): zinc Oxidation at anode: Cu ? Cu2+ + 2e reduction at cathode: Zn2+ + 2e ? Zn Cell reaction: Cu + Zn2+ ? Cu2+ + Zn Electrons move to cathode Anions move to anode Cations move to cathode 1 Predicting products of electrolysis bill 1: receive a list of all substances present. tick all possible oxidizing and reducing agents present. (Dont impart body of water for aqueous solutions) meter 2: commit the oxidoreduction plank to identify the strongest oxidizing agent. bring through the equation for the reduction half-reaction that occurs at the cathode, including the reduction potential, Step 3: Use the redox table to identify the strongest reducting agent. Write the equation...If you want to get a full essay, prepare it on our website: Orderessay

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