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Topic: expressing in equations  (Read 4881 times)

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Offline Morphic flip

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expressing in equations
« on: February 07, 2006, 04:35:27 AM »
how would you express "acid solution of Iron (II) in excess fluoride"?
is it  H+ (aq) + Fe 2+ (aq) + F2 (g)
thank`s for any advice
« Last Edit: February 07, 2006, 04:36:31 AM by Morphic flip »
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Offline Borek

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Re:expressing in equations
« Reply #1 on: February 07, 2006, 05:21:10 AM »
Quote from: Morphic flip on February 07, 2006, 04:35:27 AM
how would you express "acid solution of Iron (II) in excess fluoride"?
is it  H+ (aq) + Fe 2+ (aq) + F2 (g)
thank`s for any advice

You are mistaking fluorine and fluoride.
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Offline Morphic flip

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Re:expressing in equations
« Reply #2 on: February 07, 2006, 05:25:41 AM »
Aarrgggh, yep just seen that  ::)
F + (aq) ??
Is that correct in the equation now, or do I have the equation wrong anyway?
thank`s.
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Offline Borek

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Re:expressing in equations
« Reply #3 on: February 07, 2006, 05:49:36 AM »
F-(aq) - note that (aq) should be the same size and font as formula is, not subscript!

But correct answer depends on the level of your education - you should either list Fe2+, H+ and F-, or take HF into account, as hydrofluoric acid is a weak one and F- will be protonated in the acidic solution.
« Last Edit: February 07, 2006, 05:50:28 AM by Borek »
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Offline Morphic flip

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Re:expressing in equations
« Reply #4 on: February 07, 2006, 06:31:11 AM »
I just need to put the words from 1st post into an equation.
"acid solution of Iron (II) in excess fluoride"
cheers for help.


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