Concentration of Calcium

by | Jul 27, 2021 | Homework Help

The calcium in a 200.0 mL sample of a natural water was determined by precip itating the cation as CaCzoa. The precipitate was filtered, washed, and ignited in a crucible with an empty mass of 26.6002 g. The mass of the crucible plus Cao (56077 g/mol) was 26.7134 g. Calculate the cuncentration of Ca (40.078 g/mol) in water in units per 100 ml of the water

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