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Weigh about 8 grams of Na2EDTA.2H2O into a clean 400 mL beaker. Add 12 pellets of...

Weigh about 8 grams of Na2EDTA.2H2O into a clean 400 mL beaker. Add 12 pellets of NaOH and 0.2 grams of MgCl2.6H2O. Dissolve and dilute to 1.0 L. How can i find the theoretical molarity of EDTA from these calculations?

If I weighed 0.801 grams of CaCO3, diluted them to 250 mL of water. Then took 25 mL aliquots of that solution and titrated it with EDTA solution. If the volume of titrant used was 0.97 mL. What is the experimental molarity of EDTA?

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