Electrode Potentials Flashcards
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2
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3
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4
Q
Is the left electrode +ve/-ve? Why? Oxidation/reduction?
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5
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6
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Conditions for standard hydrogen electrode? (4)
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7
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The conc. of CUSO4 isn’t 1 moldm-3
8
Q
How to determine strongest oxidising agent?
A
SOWR at most positive E
9
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10
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11
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How to calculate voltage of a cell?
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12
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13
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14
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15
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- E.M.F increases
- Mg equilibrium shifts to the left
- More electrons donated by Mg
16
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17
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18
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19
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- E.M.F increases
- Oxygen equilibrium shifts to the right
- More electrons gained by O2
20
Q
Diagram of hydrogen-oxygen fuel cell in an acidic solution?
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21
Q
Diagram of hydrogen-oxygen fuel cell in an alkaline solution?
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22
Q
Whats the conventional cell representation for an acidic hydrogen-oxygen fuel cell?
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Pt(s) | H2(g) | H+(aq) || O2(g) | H+(aq),H2O(l) | Pt(s)
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24
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25
Pt(s) | H2(g) | OH-(aq),H2O(l) || O2(g) | H2O(l),OH-(aq) | Pt(s)
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