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72783
Volumetric Analysis
Description
Mind Map on Volumetric Analysis, created by Lukw Galbraith on 06/05/2013.
Mind Map by
Lukw Galbraith
, updated more than 1 year ago
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Created by
Lukw Galbraith
almost 11 years ago
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Resource summary
Volumetric Analysis
Titrating EDTA with magnesium and calcium ion using eriochrome black T.
End point :
Red
to blue
EDTA in the burette
Pipette 25ml portions of the magnesium solution under test into a conical flask.
Add 10ml of pH10 buffer
Add 4/5 drops of the indicator, eriochrome black T. Titrate the ion solution with edta
Titrating acidified potassium manganate(VII) with Iron (II)
Potassium Manganate (VII) in the burette
Pipette 25ml portions of ammonium iron (II) sulfate into a conical flask
Add 10ml of dilute sulfuric acid.
End point :
Colourless
to pink
Titrating Iodine with sodium thiosulfate ions using starch as an indicator
Estimate oxidising agents such as hydrogen peroxide and iodate ions by their reactions with potassium iodide
Add the thiosulfate until the solution is straw coloured.
Add starch at this point and the solution will change from
BLUE-BLACK
to colourless
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