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Topic: Titration  (Read 1510 times)

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Offline sun725

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Titration
« on: March 15, 2017, 06:38:03 AM »
I have the following question:

50.00 mL of the solution (Fe2+ / Fe3+) consumes 13.73 mL of 0.01200 M EDTA when titrated at pH = 2.00.

50.00 mL of the solution (Fe2+ / Fe3+) consumes 29.62 mL of 0.01200 M EDTA when titrated at pH = 6.00.

What is the concentration (in ppm), respectively, Fe2+ and Fe3+ in the solution? (Remember that we assume that the density of water is equal to 1 g / mL when calculating the concentration in ppm (weight / volume)).

How to approach this question. Can anyone help me where to start in order for me to solve this question ...
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Offline Borek

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Re: Titration
« Reply #1 on: March 15, 2017, 07:21:42 AM »
What is being complexed at each pH?
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