A 10.0 mL of river water containing Ca2+ is titrated with EDTA. 5.0 mL of 0.10 M EDTA is used to reach the equivalence point in the EDTA titration. What is the concentration of Ca2+ in the river water? Assume that Ca2+ is the only cation in this sample. 0.000050 M 0.0050 M 5.0 M 0.050 M What is the correct charge balance expression for a solution that contains NaCl and HCl? [H+] + [Na+] = [Cl–] [H+] = [Cl–] [H+] + [Na+] = 2[Cl–] [Na+] = [Cl–]

Given data,Volume of Ca2+=10mLMolarity of EDTA=0.10MVolume of EDTA=5.0mL

Answered: A 10.0 mL of river water containing…

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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A 10.0 mL of river water containing Ca²⁺ is titrated with EDTA. 5.0 mL of 0.10 M EDTA is used to reach the equivalence point in the EDTA titration. What is the concentration of Ca²⁺ in the river water? Assume that Ca²⁺ is the only cation in this sample.

		0.000050 M
		0.0050 M
		5.0 M
		0.050 M

What is the correct charge balance expression for a solution that contains NaCl and HCl?

		[H⁺] + [Na⁺] = [Cl^–]
		[H⁺] = [Cl^–]
		[H⁺] + [Na⁺] = 2[Cl^–]
		[Na⁺] = [Cl^–]

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