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August 1, 2014

Homework Help: chemistry 11 grade

Posted by Farah on Sunday, January 2, 2011 at 3:20am.

A piece of iron wire weighs 2.225g. It is dissolved in acid, which oxidizes the iron to iron(II), and made up to 250 mL. A 25mL sample required 31.0 mL of a 0.0185mol/L solution of potassium dichromate. Calculate the percentage of iron in the wire.

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