This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: In order to determine the identity of a particular lanthanide metal (M), a voltaic cell is ... (Read 74 times)

elizabeth18

  • Hero Member
  • *****
  • Posts: 559
on: Mar 21, 2021

Question 1

If an electrolysis plant operates its electrolytic cells at a total current of 1.2 × 106 amp, how long will it take to produce one metric ton (one million grams) of Mg(s) from seawater containing Mg2+? (1 faraday = 96,485 coulombs)

◦ 1.8 h
◦ 1.8 days
◦ 55 min
◦ 0.92 h
◦ 0.46 year

Question 2

In order to determine the identity of a particular lanthanide metal (M), a voltaic cell is constructed at 25°C with the anode consisting of the lanthanide metal as the electrode immersed in a solution of 0.0594 M MCl3, and the cathode consisting of a copper electrode immersed in a 1.00 M Cu(NO3)2 solution. The two half-reactions are as follows:
M(s) → M3+(aq) + 3e–
Cu2+(aq) + 2e–→ Cu(s)
The potential measured across the cell is 2.64 V. What is the identity of the metal?
Reduction Half-Reaction
E° (V)
Cu2+(aq) + 2e–→ Cu(s)
0.34
Ce3+(aq) + 3e–→ Ce(s)
–2.336
Dy3+(aq) + 3e–→ Dy(s)
–2.295
Eu3+(aq) + 3e–→ Eu(s)
–1.991
Gd3+(aq) + 3e–→ Gd(s)
–2.279
Sm3+(aq) + 3e–→ Sm(s)
–2.304
 


◦ Ce
◦ Eu
◦ Dy
◦ Gd
◦ Sm
Chemistry: An Atoms First Approach ¦ Zumdahl, DeCoste ¦ 3rd Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by elizabeth18 on Mar 21, 2021

Shshxj

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Mar 21, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 56% of students answer this correctly


elizabeth18

  • Member
  • Posts: 559
Reply 2 on: Mar 21, 2021
Great answer, keep it coming :)

ttt030911

  • Member
  • Posts: 315
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

All living organisms descended from a common ancestral cell All living organisms descended from a common ancestral cell
Each experimental organism used in cell biology has advantages for certain types Each experimental organism used in cell biology has advantages for certain types
Carbapenems and Miscellaneous Cell Wall Inhibitors Carbapenems and Miscellaneous Cell Wall Inhibitors
Testing a dual cell wideband oxygen sensor can be done using a voltmeter or a scope. The meter ... Testing a dual cell wideband oxygen sensor can be done using a voltmeter or a scope. The meter ...
Higher-Order Conditioning Higher-Order Conditioning
Checkpoints and proliferation decision points monitor the progress of the cell through the cell cycl Checkpoints and proliferation decision points monitor the progress of the cell through the cell cycl
Video: Embryonic development - Week 3

For a complete list of videos, visit our video library