# 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?

Jul 16, 2016

Here's the information you need:

#### Explanation:

• The balanced chemical equation
• The molar mass of ${\text{CaCO}}_{3}$
• The molar ratio of $\text{CaO}$ to ${\text{CaCO}}_{3}$
• The molar mass of $\text{CaO}$

Your strategy has four steps:

1. Write the balanced chemical equation.
2. Use the molar mass of ${\text{CaCO}}_{3}$ to calculate the moles of ${\text{CaCO}}_{3}$.
3. Use the molar ratio of $\text{CaO}$ to ${\text{CaCO}}_{3}$ from the equation to calculate the moles of $\text{CaO}$.
4. Use the molar mass of $\text{CaO}$ to calculate the mass of $\text{CaO}$.

Your answer should be about 2.6 kg of $\text{CaO}$.