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Topic: The molar absorptivity of dichromate ion  (Read 4840 times)

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Offline OhyesOhno69

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The molar absorptivity of dichromate ion
« on: September 22, 2008, 09:14:54 AM »
I'd like to know the molar absorptivity for dichromate ions...

The dichromate ions are found from the following equilibrium reaction:

2CrO42-(aq) + 2H3O+(aq) <==> Cr2O72-(aq) + 3H2O(l)

Does anyone know the molar absorptivity value for the dichromate ion? I am planning to find the concentration from the absorbance (using Lambert Beer's Law)
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Offline enahs

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Re: The molar absorptivity of dichromate ion
« Reply #1 on: September 22, 2008, 01:58:43 PM »
The Molar Absorptivity will depend on the solution you are in (what solvent, pH, etc).
If googling did not turn up results, then just determine it your self.
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