electrochemistry Flashcards

1
Q

anode gets

A

oxidized

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2
Q

cathode gets

A

reduced

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3
Q

an ox

A

anode is the site of oxidation

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4
Q

red cat

A

reduction occurs at the cathode

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5
Q

electron flow in the conducting wire

A

from anode to cathode

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6
Q

the anion from the salt bridge flow to the

A

anode

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7
Q

the cations from the salt bridge flow to the

A

cathode

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8
Q

the movement of the _____ ions allows the current in the wire to continue and completes the circuit

A

salt bridge

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9
Q

cell diagram notation for galvanic cell

A

anode | anode concentration || cathode concentration | cathode

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10
Q

if concentrations are not specified in the diagram you should assume

A

1M

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11
Q

in the absence of a salt bridge ___ develops

A

charge separation

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12
Q

ion-electron pair equation for oxidation

A

element –> ion + e-

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13
Q

ion-electron pair equation for reduction

A

ion + e- –> element

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14
Q

oxidizing agent

A

reduced element; reductant

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15
Q

reducing agent

A

oxidized element; oxidant

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16
Q

delta G node

A

NAME?

17
Q

cell voltage is positive then the reaction is ______

A

spontaneous

18
Q

cell voltage is negative then the reaction is ______

A

nonspontaneous

19
Q

the more negative the reduction potential, the ________ the reactant is as an oxidizing agent and the __________ product is as an reducing agent

A

the more negative the reduction potential, the ___weaker_____ the reactant is as an oxidizing agent and the ___stronger_______ product is as an reducing agent

20
Q

the more positive the reduction potential, the ________ the reactant is as an oxidizing agent and the __________ product is as an reducing agent

A

the more positive the reduction potential, the ___stronger_____ the reactant is as an oxidizing agent and the ___weaker_______ product is as an reducing agent

21
Q

faraday

A

96,500 coulombs

22
Q

in what case do you multiply the potential the potential of a species

A

never

23
Q

the potentials are __________ to the identities of the species involved

A

intrinsic

24
Q

electrolytic cells are used for __________

A

electroplating

25
Q

electroplating

A

plating a thin layer of metal on top of the another material

26
Q

cathode is

A

galvanic cell:

27
Q

cathode is

A

electrolytic cell:

28
Q

faraday’s law of electrolysis

A

the amount of chemical change is proportional to the amount of electricity that flows through the cell

29
Q

for nonstandard conditions, nernst equation

A

E = E nod - (RT/nF) * ln(Q)

30
Q

the more negative the reduction potential the _______ the product is as a reducing agent

A

the more negative the reduction potential the __stronger_____ the product is as a reducing agent

31
Q

charge is equal to current x time

A

Q = It