4. The titration of 50.0 ml of a solution containing calcium and magnesium required 15.5 ml of a 0.010 M EDTA solution at pH=12 and 29.6 ml at pH=10. Calculate the mass concentrations of calcium and magnesium (C, mg/l).

If the file does not open for you, install the Rar archiver program. Inside the archive, the solution is in WORD format.