Manganese (II) Sulfate Potassium iodide Potassium hydroxide Concentrated sulfuric acid Sodium Thiosulfate. In the Winkler method methodology which...
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Hello so I had to use Winkler method for a set of salts I will dissolve

in water and test the water sample for dissolved oxygen content in ppm (mg/L)


The following list is my list of chemicals that I will use:
Manganese (II) Sulfate
Potassium iodide
Potassium hydroxide
Concentrated sulfuric acid
Sodium Thiosulfate.


In the Winkler method methodology which many people have published online it is said that you normally need Potassium iodide azide, however my lab does not have this. Will it make a large change in the experimental results if I cannot use potassium iodide azide and use just potassium iodide instead?


Apart from that could you please suggest concentrations for each chemical I have listed that I should use in a Winklers Method trial. (for eg: 0.1 mol/dm^3 potassium hydroxide)

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The student who asked this found it Helpful
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"Thank you but I have more more doubt, could you please list the concentrations of each chemical in mol/dm^3?"

Subject: Chemistry, Science
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