Question

Determination of dissolved oxygen concentration of water sample

Answer 1

Answer:

Winkler test for dissolved oxygen. The Winkler test is used to determine the concentration of dissolved oxygen in water samples. ... In the test, an excess of manganese(II) salt, iodide (I−) and hydroxide (OH−) ions are added to a water sample causing a white precipitate of Mn(OH)2 to form

Answer 2

Explanation:

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