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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

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

Principles of Instrumental Analysis
Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Chapter24: Coulometry
Section: Chapter Questions
Problem 24.4QAP: Halide ions can he deposited at a silver anode, the reaction being Ag(s) + X- AgX(s) +e- Suppose...
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9:54 cdn.fbsbx.com 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?
Transcribed Image Text:9:54 cdn.fbsbx.com 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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