Choose purpose of each reagent in the Winkler Analysis. match it correctly KI (Potassium iodide) Answer 1 Na2S2O3 (Sodium thiosulfate) Answer 2 H3PO4 (Phosphoric acid) Answer 3 MnSO4 (Manganese(2) sulfate) Answer 4 NaN3 (Sodium azide) Answer 5 NaOH (Sodium Hydroxide) Answer 6 To be oxidized for analysis Supply H+ for reduction remove interferances Titrant To form a metal precipitate its hydroxide can form a floc with 02

Chemistry
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Chapter1: Chemical Foundations
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Choose purpose of each reagent in the Winkler Analysis. match it correctly

KI (Potassium iodide)

Answer 1

Na2S2O3 (Sodium thiosulfate)

Answer 2

H3PO4 (Phosphoric acid)

Answer 3

MnSO4 (Manganese(2) sulfate)

Answer 4

NaN3 (Sodium azide)

Answer 5

NaOH (Sodium Hydroxide)

Answer 6

 

 


To be oxidized for analysis
Supply H+ for reduction
remove interferances
Titrant
To form a metal precipitate
its hydroxide can form a floc with 02

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