February 22, 2017

Homework Help: chemistry

Posted by saddee on Tuesday, April 28, 2009 at 10:56pm.

25.00 mL aliquots of the solution from Part 1 are titrated with EDTA to the Eriochrome Black T end point. A blank containing a small measured amount of Mg2+ requires 2.60 mL of the EDTA to reach the end point. An aliquot to which the same amount of Mg2+ is added requires 28.55 mL of the EDTA to reach the end point.

How many milliliters of EDTA are needed to titrate the Ca+2 ion in the aliquot?

How many moles of EDTA are there in the volume obtained in the previous question?

What is the molarity of the EDTA solution?

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