Analytical chemistry question?

G

Gareth

New member
A calcium in a 200.0 mL of a natural H2O was determine by precipitating the cation as CaC2O4. The precipitate was filtered, washed and ignited in a crucible with an empty mass of 26.6002 grams. The mass of crucible plus CaO was 26.7134 grams. Calculate the concentration of calcium in water in g/100mL
 
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