Where do cations travel to in a voltaic cell?

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SUMMARY

In a voltaic cell, cations do not migrate to the anode; instead, they travel to the cathode. The anode is negatively charged, which attracts anions from the salt bridge, while cations move towards the cathode where reduction occurs. The cathode gains mass as it receives electrons, while the anode loses mass due to oxidation. Understanding the roles of the salt bridge and the direction of ion flow is crucial for grasping the function of voltaic cells.

PREREQUISITES
  • Basic understanding of electrochemistry concepts
  • Familiarity with voltaic cell components (anode, cathode, salt bridge)
  • Knowledge of oxidation and reduction reactions
  • Understanding of ion migration in electrochemical cells
NEXT STEPS
  • Study the function and importance of salt bridges in electrochemical cells
  • Learn about oxidation and reduction reactions in detail
  • Explore the Nernst equation and its application in voltaic cells
  • Investigate the differences between voltaic and electrolytic cells
USEFUL FOR

Students studying electrochemistry, educators teaching chemical reactions, and anyone interested in the principles of voltaic cells and their applications in energy conversion.

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Homework Statement


A voltaic cell is set up and a chemical reaction proceeds spontaneously. Which of the following will not occur in this reaction?
(A) The electrons will migrate through the wire.
(B) The cations in the salt bridge will migrate to the anode half cell.
(C) The cathode will gain mass.
(D) The anode will lose mass.
(E) Reduction will occur at the cathode.

Homework Equations


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The Attempt at a Solution


The anode is negatively charged so I thought cations will travel to the anode but apparently this is not true. Can someone clarify this?

Thanks!
 
Physics news on Phys.org
What happens at the anode half cell?
They mention the cations in the salt bridge
So what is the use of a salt bridge?
Try relating the answers to those 2 questions
 
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