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Topic: number of mole electrons  (Read 5270 times)

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Offline kimi85

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number of mole electrons
« on: July 10, 2007, 09:35:45 AM »
2Ag+ + 2I- --> I2 + 2Ag

Is the number of mole electrons one or two?
I think it's only one but I'm not sure.

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Re: number of mole electrons
« Reply #1 on: July 10, 2007, 10:33:41 AM »
Write half reaction for iodine.
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Offline kimi85

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Re: number of mole electrons
« Reply #2 on: July 10, 2007, 06:03:16 PM »
I- --> I2

Offline Yggdrasil

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Re: number of mole electrons
« Reply #3 on: July 10, 2007, 07:07:19 PM »
Now balance the number of atoms and charge

Offline kimi85

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Re: number of mole electrons
« Reply #4 on: July 10, 2007, 07:26:42 PM »
2I-   --> I2 + 2e

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Re: number of mole electrons
« Reply #5 on: July 11, 2007, 02:30:37 AM »
Note that amount of iodine present in the half reaction is exactly the same as in the final balanced reaction.

Do you see now number of moles of electrons?
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Offline kimi85

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Re: number of mole electrons
« Reply #6 on: July 11, 2007, 09:24:07 AM »
So, 2 mole of electrons?

Thank you very much! :)

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