November 28, 2021, 07:18:39 AM
Forum Rules: Read This Before Posting


Topic: How do I write a galvanic cell schematic?  (Read 417 times)

0 Members and 1 Guest are viewing this topic.

Offline bradenator

  • New Member
  • **
  • Posts: 7
  • Mole Snacks: +0/-0
How do I write a galvanic cell schematic?
« on: June 14, 2021, 12:56:35 AM »
How do I write the cell schematic for SiO3^2-(aq) + Mg(s) —> Si(s) + Mg(OH)2(s)?

I have made a genuine attempt at trying to solve this problem but I can’t quite get it. I have been able to solve other cell schematic problems up until this point. I could not find any examples like this one in my textbook. I am also taking General Chemistry 2 online so help is limited, so any help at all is appreciated!

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 26861
  • Mole Snacks: +1742/-403
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: How do I write a galvanic cell schematic?
« Reply #1 on: June 14, 2021, 03:35:24 AM »
First step would be to determine both redox couples involved.

Note that the reaction is not balanced and the equation doesn't list all reactants involved.
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info, pH-meter.info

Offline bradenator

  • New Member
  • **
  • Posts: 7
  • Mole Snacks: +0/-0
Re: How do I write a galvanic cell schematic?
« Reply #2 on: June 14, 2021, 10:22:00 AM »
Yes, I managed to balance the reaction and ended up with    2Mg + 3H2O + SiO3^2- —> 2Mg(OH)2 + Si + 2OH^-

I’m confused about how I would write the cell schematic if there is solid mg on both sides.

Sponsored Links