1. A 1.2048 g sample of impure Na2CO3 is dissolved and allowed to react with a solution of CaCl2. The resulting CaCO3, after precipitation, filtration, and drying, was found to weigh 1.0362 g. Assuming that the impurities do not contribute to the weight of the precipitate, calculate the percent purity (mass percent) of the Na2CO3. yields The equation for the reaction is Na₂CO₂ +CaCl, CaCO₂ + 2NaCl. 19.80 91.08 18.90 81.09

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