Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Answer the following:
a. Will nitrate ions in acidic solution oxidize copper to copper (II) ions?
b. What is the product of the oxidation of copper by iron(II) ions? Copper (I) ions? Copper(II) ions?
5. Which of the following species will be oxidized by 1M HBr?
a. Na
b. Hg
c. Pb
d. Mn2+
6.Consider a voltaic cell at 25oC in which the following reaction takes place
a. Calulate Eo.
b. Write the Nernst equation for the cell.
c. Calculate E under the following conditions:
[NO3-] = 0.750 M
PNO = 0.993 atm
PO2 = 0.515 atm
pH = 2.85
8. A solution containing a metal ion (M2+ (aq)) is electrolyzed by a current of 7.8 A. After 15.5 minutes, 1.19g of the metal is plated out.
a. How many coulombs are supplied by the battery?
b. What is the metal? (Assume 100% efficiency.)
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- For a voltaic cell based on the reaction below, what reaction happens at the cathode?Zn(s)+2H+(aq)→Zn2+(aq)+H2(g) a. Zn(s)→Zn2+(aq)+2e- b. 2H+(aq)+2e-→H2(g) c. Zn2+(aq)+2e-→Zn(s) c. H2(g)→2H+(aq)+2e-arrow_forward#26arrow_forwardA charger that supplies a current of 120. mA of current is used to recharge a NiCd battery. How much time, in h, does it take to convert 1.55g of Cd(OH)2 back into Cd so the battery can be used again? O4.73 O 1.25 O 2.29 3.94 O0.732arrow_forward
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