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Topic: tetraamine copper sulphate complex  (Read 10474 times)

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Offline funsize

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tetraamine copper sulphate complex
« on: March 29, 2008, 01:51:12 AM »
can someone please tell me what forms from this reaction?

2[Cu(NH3)4]+2 + 4I-

cheers
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Offline agrobert

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Re: tetraamine copper sulphate complex
« Reply #1 on: March 29, 2008, 03:30:20 AM »
What are your thoughts?  What type of ligand is ammonia? iodide?
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Offline Borek

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Re: tetraamine copper sulphate complex
« Reply #2 on: March 29, 2008, 03:48:43 AM »
Do you know how to determine copper gravimetrically? Iodine is an important part of the method
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Offline funsize

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Re: tetraamine copper sulphate complex
« Reply #3 on: March 29, 2008, 08:04:54 PM »
no i dont know how to determine copper gravimetrically! its part of a prac i have to do and im just not sure of the equation to use in the end. im thinking it makes iodine, CuI and ammonia?

cheers
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Offline agrobert

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Re: tetraamine copper sulphate complex
« Reply #4 on: March 29, 2008, 10:19:53 PM »
What properties does CuI have?  Is this an aqueous reaction?  Write out your equation(s).
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Offline Borek

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Re: tetraamine copper sulphate complex
« Reply #5 on: March 30, 2008, 04:58:26 AM »
Quote from: funsize on March 29, 2008, 08:04:54 PM
it makes iodine, CuI and ammonia

Good shot. now try to balance.

There is small problem though - no idea what the formal potentials are in the presence of ammonia.
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