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August 2, 2015

Homework Help: chemistry

Posted by Hobson on Sunday, March 28, 2010 at 4:30am.

A solution is prepared by dissolving 0.2222 (กพ0.0002) g of KIO3 in 50.00 (กพ0.05) mL.
(i) Calculate the molar mass of KIO3 with its associated uncertainty to the correct number of significant figures.
(ii) Find the molarity and its uncertainty with an appropriate number of significant figures.
(iii) Would the answer be affected significantly if the reagent were only 99.9% pure? Why or why not

I dont get this.... plz help me omg

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