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What is the mass of 3 moles of carbon dioxide (CO2)?

Practice Questions

Q1
What is the mass of 3 moles of carbon dioxide (CO2)?
  1. 44 g
  2. 66 g
  3. 132 g
  4. 22 g

Questions & Step-by-Step Solutions

What is the mass of 3 moles of carbon dioxide (CO2)?
  • Step 1: Identify the chemical formula of carbon dioxide, which is CO2.
  • Step 2: Find the molar mass of carbon (C), which is 12 g/mol.
  • Step 3: Find the molar mass of oxygen (O), which is 16 g/mol.
  • Step 4: Since there are 2 oxygen atoms in CO2, calculate the total mass of oxygen: 16 g/mol x 2 = 32 g/mol.
  • Step 5: Add the mass of carbon and the total mass of oxygen to find the molar mass of CO2: 12 g/mol + 32 g/mol = 44 g/mol.
  • Step 6: To find the mass of 3 moles of CO2, multiply the molar mass by the number of moles: 3 moles x 44 g/mol = 132 g.
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