9:54cdn.fbsbx.comDone1. In an experiment, what volume of O, (g) at 0°C and 760mmHg is produced when 5 A of current is passed through adilute aqueous solution of KCl for 5 minutes?2. One of the most problems encountered. Molecular masses canbe determined through electroplating. Determine the molecularmass and identity of a +2 metal, X, that plates 46.3g of X in 6.75hours at a current of 2 A.3. Solving time of electrolytic process. How long will it take for1.25 L of a 1.0 M CUSO, solution being electrolyzed with acurrent of 3.40 A to reach a concentration of0.25 M?a dilute solution.4. Determining electrolytic activity inElectrolysis of dilute aqueous NaCl solution was carried out bypassing 10 milliampere current. The time required to liberate0.01 mol of H, gas at the cathode5. Determining molar mass by electrolysis. An electrolysis cellcontaining MSO,solution is operated for 1.0 hr at constantcurrent of 0.200 A. If the current efficiency is 95%, and 0.399 gof MM plates out, what is the atomic weight of theelement MM?6. Electroplating stoichiometric problem give, a metallic objectto be plated with copper is placed in a solution of CuSO,. Whatmass of copper will be deposited if a current of 0.22 amp flowsthrough the cell for 1.5 hours?0.397. Determining volume of a gas by electrolysis. What volume ofchlorine gas at standard temperature and pressure is evolvedwhen a solution of MgCl, is electrolyzed using a current of 12.4A for 1.0 h?8. Mass determination by electroplating. What mass of coppermetal is deposited if a 5.12 A current is passed through aCu(NO,), solution for 10 hr.9. Electrolytic process of determining molar mass. Anelectrolysis cell contains X³+ ions. When a 5.45 A current ispassed through the cell for 2.16 x 103 s, 8.50 g of elemental Xare formed. What is the molar massX and at which electrodedoes X appear?10. Mass determination - what mass of PbO, is reduced when acurrent of 5.0 A is withdrawn over a period of 2.0 h from a leadstorage battery?

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1. In an experiment, what volume of O, (g) at 0°C and 760 mmHg is produced when 5 A of current is passed through a

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

Electrolysis

Electrolysis is defined as the process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state. The cathode reduces cations, while the anode oxidizes anions. An electrolyte, electrodes, and some form of external power source are the main components required for conducting electrolysis. A partition, such as an ion-exchange membrane or a salt bridge, may also be used, but this is optional. These are primarily used to prevent the products from diffusing near the opposing electrode.

Question

9:54
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Done
1. In an experiment, what volume of O, (g) at 0°C and 760
mmHg is produced when 5 A of current is passed through a
dilute aqueous solution of KCl for 5 minutes?
2. One of the most problems encountered. Molecular masses can
be determined through electroplating. Determine the molecular
mass and identity of a +2 metal, X, that plates 46.3g of X in 6.75
hours at a current of 2 A.
3. Solving time of electrolytic process. How long will it take for
1.25 L of a 1.0 M CUSO, solution being electrolyzed with a
current of 3.40 A to reach a concentration of0.25 M?
a dilute solution.
4. Determining electrolytic activity in
Electrolysis of dilute aqueous NaCl solution was carried out by
passing 10 milliampere current. The time required to liberate
0.01 mol of H, gas at the cathode
5. Determining molar mass by electrolysis. An electrolysis cell
containing MSO,solution is operated for 1.0 hr at constant
current of 0.200 A. If the current efficiency is 95%, and 0.399 g
of MM plates out, what is the atomic weight of the
element MM?
6. Electroplating stoichiometric problem give, a metallic object
to be plated with copper is placed in a solution of CuSO,. What
mass of copper will be deposited if a current of 0.22 amp flows
through the cell for 1.5 hours?
0.39
7. Determining volume of a gas by electrolysis. What volume of
chlorine gas at standard temperature and pressure is evolved
when a solution of MgCl, is electrolyzed using a current of 12.4
A for 1.0 h?
8. Mass determination by electroplating. What mass of copper
metal is deposited if a 5.12 A current is passed through a
Cu(NO,), solution for 10 hr.
9. Electrolytic process of determining molar mass. An
electrolysis cell contains X³+ ions. When a 5.45 A current is
passed through the cell for 2.16 x 103 s, 8.50 g of elemental X
are formed. What is the molar mass
X and at which electrode
does X appear?
10. Mass determination - what mass of PbO, is reduced when a
current of 5.0 A is withdrawn over a period of 2.0 h from a lead
storage battery?

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