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Ap Chemistry Prac. Test 2013

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AP Chemistry Review Sheet Test 3
1. How long will it take a current of 2 amperes to plate out 1 mole of Copper from CUSO4
2. F2 + Cl- → F- + Cl2 Write all the possible conclusions you can draw from this equation based off your electrochemistry knowledge.
3. Cu2+(aq) + 2e- Cu(s) Eo = 0.34 V Cr3+(aq) + e- Cr2+(aq) Eo = - 0.41 V, Write the cell reaction and calculate EMF.
4.
M(s) + 3 Ag+(aq) --> 3 Ag(s) + M3+(aq) | E = +3.16 V | M+(aq) + e¯ --> M(s) | E = +0.20 V | According to the information above, what is the standard reduction potential for the half-reaction M3+(aq) + 3 e¯ --> M(s)?

5. Half-cell 1: strip of Al(s) in 1.00 M Al(NO3)3(aq)
Half-cell 2: strip of Cu(s) in 1.00 M Cu(NO3)2(aq)
Half-cell 3: strip of Fe(s) in 1.00 M Fe(NO3)2(aq)
Galvanic cell Half-cells Cell reaction Ecello( V)
X 1 and 2 2 Al(s) + 3 Cu2+(aq) 2 Al3+(aq) + 3 Cu(s) ?
Y 1 and 3 2 Al(s) + 3 Fe2+(aq) 2 Al3+(aq) + 3 Fe(s) 1.22
Z 2 and 3 Fe(s) + Cu2+(aq) Fe2+(aq) + Cu(s) 0.78
Calculate the cell potential of Galvanic cell X? In all the three cells X, Y and Z, What reaction takes place at the three half cells like oxidation or reduction or neither or both.

6. What are the factors affecting rates of chemical reactions?
7. How does a catalyst speed up a chemical reaction?
8. Define order and write its characteristics.
9. Write the rate law for NO(g) + NO(g) N2O2(g) slow N2O2(g) + O2(g) 2 NO2(g) fast
10. Calculate the rate law. Experiment | Initial [NO]
(mol L¯1 | Initial [O2]
(mol L¯1 | Initial Rate of
Formation of NO2
(mol L¯1 s¯1) | 1 | 0.10 | 0.10 | 2.5 x 10¯4 | 2 | 0.10 | 0.20 | 5.0 x 10¯4 | 3 | 0.40 | 0.20 | 8.0 x 10¯3 |

11. How does Molecular collision theory explain the rate of a chemical

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