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A 120gm CaCO(3) sample having inert impu...

A `120gm CaCO_(3)` sample having inert impurities on heating produced `56gm` of residue. Find `%` punity of sample .

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To find the percentage purity of the calcium carbonate (CaCO₃) sample, we can follow these steps: ### Step 1: Understand the Reaction When calcium carbonate (CaCO₃) is heated, it decomposes into calcium oxide (CaO) and carbon dioxide (CO₂). The balanced chemical equation is: \[ \text{CaCO}_3 (s) \rightarrow \text{CaO} (s) + \text{CO}_2 (g) \] ### Step 2: Determine the Mass of Pure CaCO₃ We know that after heating, the residue is 56 grams of calcium oxide (CaO). This means that the mass of CaO produced is directly related to the amount of pure CaCO₃ that was present in the original sample. ...
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