The well water in an area is “hard” because it is in
Chapter 20, Problem 90P(choose chapter or problem)
Problem 90P
The well water in an area is “hard” because it is in equilibrium with CaCO3 in the surrounding rocks. What is the concentration of Ca2+ in the well water (assuming the water's pH is such that the CO32– ion is not significantly protonated)? (See Appendix C for Ksp of CaCO3.)
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