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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: buffy121 on August 14, 2009, 01:29:46 AM

Title: Titration - calculating molarity
Post by: buffy121 on August 14, 2009, 01:29:46 AM

Okay so i cannot remember how to calculate the molarity of a solution. These are my results:

I put a 20ml aliquot of 0.1M sodium thiosulfate in a flask and added starch.
The average amount of iodine required to turn the solution blue was 12.39ml.

Can someone please tell me how to find the molarity of the iodine solution.
Thanks

Title: Re: Titration - calculating molarity
Post by: Borek on August 14, 2009, 02:57:45 AM

On the most basic level:

http://www.titrations.info/titration-calculation