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April 23, 2014

Homework Help: DrBob222 : Chemistry HElp...Please Check

Posted by Sara on Tuesday, October 21, 2008 at 9:48pm.

Sorry its not letting me post the entire thing in the other thread

.000146612 mols KIO3 x (3 mols I2/1 mol KIO3) x (2 mols S2O3^-2/1 mol I2) mols
= .000887972 mols S203^2-

Then M S2O3^-2 = .000887972 mols/0.02715 L.M = 0.032400

Therefore the Molar mass of Na2S2O3 is 0.032400

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