Hard water often contains dissolved Ca2+Ca2+ and Mg2+Mg2+ ions. One way to soften water is to add phosphates. The phosphate ion forms insoluble precipitates with calcium and magnesium ions, removing them from solution. Suppose that a solution is 5.5×10−2 MM in calcium chloride and 9.0×10−2 MM in magnesium nitrate.What mass of sodium phosphate would have to be added to 1.0 LL of this solution to completely eliminate the hard water ions? Assume complete reaction.

Given: Concentration of CaCl2 = 5.5 ×10−2 M The concentration of Mg (NO3)2= 9.0×10−2 M The volume…

Answered: Hard water often contains dissolved…

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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Hard water often contains dissolved Ca2+Ca2+ and Mg2+Mg2+ ions. One way to soften water is to add phosphates. The phosphate ion forms insoluble precipitates with calcium and magnesium ions, removing them from solution. Suppose that a solution is 5.5×10⁻² MM in calcium chloride and 9.0×10⁻² MM in magnesium nitrate.

What mass of sodium phosphate would have to be added to 1.0 LL of this solution to completely eliminate the hard water ions? Assume complete reaction.

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