2. A small amount of MgCl, solution is added to a 25 mL aliquot of the solution in problemland the mixture is titrated with EDTA to the Eriachrome Black T end point. The mixedsolution requires 28.55 mL of the EDTA solution to reach the end point. A similar amount ofMgCl, solution requires 2.60 mL to reach the endpoint.a) How many milliliters of EDTA are needed to titrate the Ca ion in the sample?b) How many moles of EDTA are there in the volume calculated for 2 (a)?molesc) What is the molarity of the EDTA solution?

Given: Mixed solution =28.55mL Amount of MgCl2 solution =2.60mL

Answered: EDTA solution?

Science

Chemistry

EDTA solution?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

2. A small amount of MgCl, solution is added to a 25 mL aliquot of the solution in problem
land the mixture is titrated with EDTA to the Eriachrome Black T end point. The mixed
solution requires 28.55 mL of the EDTA solution to reach the end point. A similar amount of
MgCl, solution requires 2.60 mL to reach the endpoint.
a) How many milliliters of EDTA are needed to titrate the Ca ion in the sample?
b) How many moles of EDTA are there in the volume calculated for 2 (a)?
moles
c) What is the molarity of the EDTA solution?

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