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What is the molar mass of CaCO3?

Practice Questions

Q1
What is the molar mass of CaCO3?
  1. 100 g/mol
  2. 120 g/mol
  3. 80 g/mol
  4. 60 g/mol

Questions & Step-by-Step Solutions

What is the molar mass of CaCO3?
  • Step 1: Identify the elements in CaCO3. It contains Calcium (Ca), Carbon (C), and Oxygen (O).
  • Step 2: Find the atomic mass of each element: Calcium (Ca) = 40 g/mol, Carbon (C) = 12 g/mol, and Oxygen (O) = 16 g/mol.
  • Step 3: Count how many of each element are in CaCO3. There is 1 Calcium, 1 Carbon, and 3 Oxygens.
  • Step 4: Calculate the total mass for each element: Calcium = 1 * 40 = 40 g/mol, Carbon = 1 * 12 = 12 g/mol, Oxygen = 3 * 16 = 48 g/mol.
  • Step 5: Add the total masses together: 40 + 12 + 48 = 100 g/mol.
  • Step 6: The molar mass of CaCO3 is 100 g/mol.
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