Electrochemistry
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Cell diagram shorthand | Anode/anode solution//cathode solution/cathode
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| reduction occurs where... | cathode
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| If the cell voltage (E°) is postive... | the reaction is spontaneous
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| if the cell voltage (E°) is negative... | the reaction is non-spontaneous
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| in a galvanic cell the anode is _________; and the cathode is___________ | negative, positive
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| the more negative the reduction potential... | the stronger the product is as a reducing agent.
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| the more positve the reducing potential... | the stronger the reactant is as an oxidiazing agent
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| Gibbs Free energy for a redox reaction | = - nFE; n = number of moles of electrons transfered; F = Faraday constand (96500); E = cell voltage given
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| Galavonic/Voltaic cells... | transfer of electrons uses spontaneous redox reaction to generate an electric current
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| Electrolytic cells... | uses external voltage source to create an electric current that forces a non-spontaneous redox reaction to occur.
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| electrons move from... | the anode to the cathode
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| oxidation occurs where... | anode
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| in an electrolytic cell the anode is ________; and the cathode is ________ | positive, negative
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| a Faraday is equal to... | 96500 C
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