Decomposing calcium carbonate yields calcium oxide and dioxide. What information is needed to calculate the mass of calcium oxide that can produced from 4.7 kg of calcium carbonate?

Md Ariful Islam

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Md Ariful Islam

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  • The balanced chemical equation
  • The molar mass of $"CaCO"_3$
  • The molar ratio of $"CaO"$ to $"CaCO"_3$
  • The molar mass of $"CaO"$

Your strategy has four steps:

  1. Write the balanced chemical equation.
  2. Use the molar mass of $"CaCO"_3$ to calculate the moles of $"CaCO"_3$.
  3. Use the molar ratio of $"CaO"$ to $"CaCO"_3$ from the equation to calculate the moles of $"CaO"$.
  4. Use the molar mass of $"CaO"$ to calculate the mass of $"CaO"$.

Your answer should be about 2.6 kg of $"CaO"$.

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The recommended daily dose of calcium is 1200 mg. Calcium supplements often use calcium carbonate, $CaCO_3$, as the source of calcium. What mass of $CaCO_3$ should be used in a tablet so that one tablet provides the recommended daily dose of calcium?

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