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Answer :
Final answer:
The thermal decomposition of limestone or calcium carbonate results in calcium oxide and carbon dioxide. Using the molar masses of these components and the given mass of calcium carbonate, one can calculate the expected mass of carbon dioxide to be 112 kg.
Explanation:
This question involves the concept of stoichiometry in the thermal decomposition of limestone (calcium carbonate, CaCO3) to form calcium oxide (CaO) and carbon dioxide (CO2). The balanced chemical reaction for the process is CaCO3(s) → CaO(s) + CO2(g).
By using the equation and the conservation law of mass in chemistry, we can say the mass of calcium carbonate that you start with will be equivalent to the collective masses of calcium oxide and carbon dioxide produced. If the mass of CaCO3 is 2.00 x 10^2 kg, to find out how much carbon dioxide (CO2) could be produced, you would need to calculate based on the molar masses of CaCO3 and CO2. Considering the molar masses (CaCO3=100 g/mol, CO2=44 g/mol), you will find the answer is c) 112 kg
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