What is the empirical formula of glucose (C6H12O6)?

Practice Questions

Q1
What is the empirical formula of glucose (C6H12O6)?
  1. C6H12O6
  2. CH2O
  3. C3H6O3
  4. C2H4O2

Questions & Step-by-Step Solutions

What is the empirical formula of glucose (C6H12O6)?
Correct Answer: CH2O
  • Step 1: Identify the number of each type of atom in the molecular formula of glucose, which is C6H12O6.
  • Step 2: Count the number of carbon (C), hydrogen (H), and oxygen (O) atoms: There are 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms.
  • Step 3: Find the greatest common divisor (GCD) of the numbers of atoms. The GCD of 6, 12, and 6 is 6.
  • Step 4: Divide the number of each type of atom by the GCD: C: 6/6 = 1, H: 12/6 = 2, O: 6/6 = 1.
  • Step 5: Write the empirical formula using the simplified numbers: The empirical formula is CH2O.
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