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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: lifeless on November 18, 2007, 10:47:03 PM

Title: Winkler's test for Dissolved Oxygen
Post by: lifeless on November 18, 2007, 10:47:03 PM
Hello, I was wondering if someone could help me. I'm trying to do the Winkler's Test for dissolved oxygen however a site says I need Alkali-iodide-azide which I cannot get. I searched wikipedia(haha) but it gives me things like Manganese(II) sulfate 48% or Potassium iodide 15% in potassium hydroxide 70% What do the percentage mean? Are they the molarity? Thanks.

Also, sorry if this is in the wrong part. I think it goes here since I'm in high school and all haha
Title: Re: Winkler's test for Dissolved Oxygen
Post by: Borek on November 19, 2007, 03:36:27 AM
Manganese(II) sulfate 48% or Potassium iodide 15% in potassium hydroxide 70% What do the percentage mean? Are they the molarity?

Most likely w/w % - http://www.chembuddy.com/?left=concentration&right=mass-percentage