Top Posters
Since Sunday
t
7
m
6
k
6
F
5
j
5
t
5
j
5
G
5
f
5
a
5
d
5
c
5
Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
New Topic  
jcp_03 jcp_03
wrote...
Go to Answer
Posts: 166
Rep: 0 0
3 years ago
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
Textbook 
Chemistry: An Atoms First Approach

Chemistry: An Atoms First Approach


Edition: 3rd
Authors:
Read 46 times
1 Reply
Replies
Answer verified by a subject expert
Bowmanette35Bowmanette35
wrote...
#1
Posts: 90
Rep: 0 0
3 years ago
Sign in or Sign up in seconds to unlock everything for free
More solutions for this book are available here
1

Related Topics

jcp_03 Author
wrote...

3 years ago
this is exactly what I needed
Lawson1981
wrote...

Yesterday
Thank you, thank you, thank you!
jmelchor77
wrote...

2 hours ago
This calls for a celebration Person Raising Both Hands in Celebration
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1025 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Related Images
  
 353
  
 151
  
 1497
Your Opinion
Which country would you like to visit for its food?
Votes: 214
Previous poll results: How often do you eat-out per week?