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When 4.2 g of NaHCO3 is added to a solut...

When 4.2 g of `NaHCO_3` is added to a solution of `CH_3COOH` weight 10g, it is observed that 2.2g of `CO_2` is released into atmosphere. The residue is found to weight 12.0g. Show that these observations are in agreement with the law of conservation of mass.

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