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What is the total number of moles of gas produced when 1 mole of CaCO3 decompose

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Question: What is the total number of moles of gas produced when 1 mole of CaCO3 decomposes?

Options:

  1. 1 mole
  2. 2 moles
  3. 3 moles
  4. 0 moles

Correct Answer: 2 moles

Solution: 

The decomposition of CaCO3 produces CaO and CO2: CaCO3 → CaO + CO2. This results in 1 mole of gas (CO2) being produced.

What is the total number of moles of gas produced when 1 mole of CaCO3 decompose

Practice Questions

Q1
What is the total number of moles of gas produced when 1 mole of CaCO3 decomposes?
  1. 1 mole
  2. 2 moles
  3. 3 moles
  4. 0 moles

Questions & Step-by-Step Solutions

What is the total number of moles of gas produced when 1 mole of CaCO3 decomposes?
  • Step 1: Identify the chemical reaction for the decomposition of calcium carbonate (CaCO3).
  • Step 2: Write the balanced equation: CaCO3 → CaO + CO2.
  • Step 3: Look at the products of the reaction. We have CaO (solid) and CO2 (gas).
  • Step 4: Count the number of moles of gas produced. In this case, there is 1 mole of CO2.
  • Step 5: Conclude that the total number of moles of gas produced is 1 mole.
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