Calcium in tap water sample (0.20 L) was determined by precipitating the cation as CaC2O4. The precipitate then filtered, washed and ignited to form 0.1132g of CuO. Calculate the concentration of Ca i

Calcium in tap water sample (0.20 L) was determined by precipitating the cation as CaC2O4. The precipitate then filtered, washed and ignited to form 0.1132g of CuO. Calculate the concentration of Ca in this sample

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