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

Answer:

Here's the information you need:

Explanation:

  • 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"#.