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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?

1 Answer

Jul 16, 2016

Here's the information you need:

Explanation:

The balanced chemical equation
The molar mass of ${CaCO}_{3}$ $"CaCO"_3$
The molar ratio of $CaO$ $"CaO"$ to ${CaCO}_{3}$ $"CaCO"_3$
The molar mass of $CaO$ $"CaO"$

Your strategy has four steps:

Write the balanced chemical equation.
Use the molar mass of ${CaCO}_{3}$ $"CaCO"_3$ to calculate the moles of ${CaCO}_{3}$ $"CaCO"_3$ .
Use the molar ratio of $CaO$ $"CaO"$ to ${CaCO}_{3}$ $"CaCO"_3$ from the equation to calculate the moles of $CaO$ $"CaO"$ .
Use the molar mass of $CaO$ $"CaO"$ to calculate the mass of $CaO$ $"CaO"$ .

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

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