h2 chem-electrolysis, galvanic

• striderz_o405

  12 Nov 07, 21:56

  hmm what should i watch out for other than the following?
  
  an ox
  (anode-oxidation)
  
  cat red
  (cathode-reduction)
  
  electrolysis: A+ C-
  galvanic: A- C+
  
  
• maxtonian

  12 Nov 07, 22:09

  electrolysis: there are H+ and OH- ions participating in the process. just beware of this. dont make careless mistakes.
• striderz_o405

  12 Nov 07, 22:18

  Originally posted by maxtonian:

  electrolysis: there are H+ and OH- ions participating in the process. just beware of this. dont make careless mistakes.

  ok thanks luckily you reminded me.
  
  it's only for aqueous solutions and not molten states btw.
  
  then anything for galvanic cell ?
• maxtonian

  12 Nov 07, 22:23

  Originally posted by striderz_o405:

  ok thanks luckily you reminded me.
  
  it's only for aqueous solutions and not molten states btw.
  
  then anything for galvanic cell ?

  galvanic cell got salt bridge( usually the compound is KCl, if i'am not wrong), so as to maintain the neutrality between solutions.
  
  also, galvanic cell got the S.H.E, remember the standard conditions for the process[ 1moldm^-3, 278k, etc]
• striderz_o405

  12 Nov 07, 22:30

  Originally posted by maxtonian:

  galvanic cell got salt bridge( usually the compound is KCl, if i'am not wrong), so as to maintain the neutrality between solutions.
  
  also, galvanic cell got the S.H.E, remember the standard conditions for the process[ 1moldm^-3, 278k, etc]

  298K btw, not 278K
  
  and btw how do i know if i put SHE on left or right? or rather anode or cathode?
• maxtonian

  12 Nov 07, 22:50

  Originally posted by striderz_o405:

  298K btw, not 278K
  
  and btw how do i know if i put SHE on left or right? or rather anode or cathode?

  to deteremine whether left or right, depends on which metal they give u lor.
  
  if metal A has the electrode potential > 0, hydrogen undergoes oxidation.
  
  if metal B has the electrode potential < 0 , hydrogen undergoes reduction
• Ignorance

  13 Nov 07, 08:03

  Originally posted by striderz_o405:

  298K btw, not 278K
  
  and btw how do i know if i put SHE on left or right? or rather anode or cathode?

  ]
  
  S.H.E??
  Chim
  Chim
  very chim
  
  btw,guys,
  i m still enjoying my post promos holidays
• striderz_o405

  13 Nov 07, 11:59

  it turned out that this topic didnt come out
• dbowie

  13 Nov 07, 12:01

  * point and laugh at strider *
• striderz_o405

  13 Nov 07, 12:03

  nvm at least i still can do most of the ques