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Topic: CHEMISTRYYYYY!  (Read 2354 times)

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Offline dyingsoul

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CHEMISTRYYYYY!
« on: March 16, 2009, 10:00:06 AM »
Help please! I've tried so hard to come out with the balanced equations but to no avail );

A metallic salt containing the anion IxCly- decomposed when heated to form iodine vapour and the metallic chloride. When 0.270 g of this compound was heated, the iodine evolved was bubbled into excess potassium iodide solution.

The dissolved iodine required 21.30 cm3 of 0.0600 mol dm-3 aqueous sodium thiosulfate for complete reaction. When the residue was dissolved in water, the resulting solution required 6.40 cm3 of 0.100 mol dm-3 aqueous silver nitrate for complete reaction.

Determine the value of x and y in IxCly-.

Hence, determine the identity of the metallic element.

Your help is very much appreciated. Thank you

Offline Arkcon

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Re: CHEMISTRYYYYY!
« Reply #1 on: March 16, 2009, 10:08:27 AM »
Well, for starters, can you determine the chemical reactions taht are used to determine the iodine and the chlorine amounts?  Can you determine moles of each realsed, so you can determine x and y.
Hey, I'm not judging.  I just like to shoot straight.  I'm a man of science.

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