Winkler Method is a classical method(titration method) for determine the dissolved oxygen(BOD).
Addition of manganous sulfate
Addition of sulfamic acid
Addition of alkaline iodine
Titration with sodium thiosulfate
Addition of starch indicator
because it is very cheap...
wearing of gloves because we will conduct acidic solution
yes,
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An organized process for gathering observations is the scientific method. The scientific method consists of steps that help researchers get accurate information about research.
The correct steps for the scientific method are: Observation Hypothesis Theory Scientific Law
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No.
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you might need to complete the steps of the scientific method in a specific orderso you dont get the wrong answer.
Purpose then Hypothesis
because it is very cheap...
what are 5 steps of scientific method first to last
So they can get a more accurate answer
So they can get a more accurate answer
Scientific method