9. What is the current that must be passed through solution AuCl3 for 200 second to precipitate 3g from gold on cathode? (At.wt Au= 197, C1=35.5). a. 27 A b. 15 A c. 22 A 10. Which of the following mixture(s) is a buffer: a. 25mL 0.1M NaOH mixed with 25mL 0.1M NaOAC. c. 25mL 0.1M NH3 mixed with 12.5mL 0.1M HCI. d. 33 A b. 25mL 0.1M HCI mixed with 25mL 0.1M NaOH. d. 50mL 0.1M HOAC mixed with 25ml of 0.1M NaOH. 11. After balancing the following redox equation Fe+2+ MnO4 lion will be: a. 5 b. 2 C. 1 Mn+2+ Fe +3, , no. of moles of ferric d. 7 e, none of them

9. What is the current that must be passed through solution AuCl3 for 200 second to precipitate 3g from gold on cathode? (At.wt Au= 197, C1=35.5). a. 27 A b. 15 A c. 22 A 10. Which of the following mixture(s) is a buffer: a. 25mL 0.1M NaOH mixed with 25mL 0.1M NaOAC. c. 25mL 0.1M NH3 mixed with 12.5mL 0.1M HCI. d. 33 A b. 25mL 0.1M HCI mixed with 25mL 0.1M NaOH. d. 50mL 0.1M HOAC mixed with 25ml of 0.1M NaOH. 11. After balancing the following redox equation Fe+2+ MnO4 lion will be: a. 5 b. 2 C. 1 Mn+2+ Fe +3, , no. of moles of ferric d. 7 e, none of them

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter21: Potentiometry

Section: Chapter Questions

Problem 21.21QAP

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