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preparing .01 M KIO3??

varanuch
in Experiments

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How would i prepare a 100 mL primary standard solutin of .01 M KIO3? I started with molarity= moles of solute/liter of solution and got .001 moles of solute. Then i used .001 moles times 214 (MW) to get .214 grams...now what do i do??

Take your mass of KIO3 and dissolve in 100 ml water to obtain your 0.01M solution.

Not exactly. Dissolve in less than 100 ml of water, and then add water while stirring, such that the total volume is 100 ml.

 

With this 0.01 M solution Darkblade's method will only introduce a marginal error, but with more concentrated solutions the error may become considerable.

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