1. Calculate the molar mass of C6H12O6:
- C6H12O6 = (6 × 12.01 g/mol C) + (12 × 1.01 g/mol H) + (6 × 16.00 g/mol O)
- Molar mass = 180.16 g/mol
2. Convert the given mass (18 g) to moles:
- Moles of C6H12O6 = 18 g / 180.16 g/mol
- Moles of C6H12O6 = 0.1 mol
3. Use Avogadro's number to calculate the number of atoms:
- Number of molecules in 0.1 mol = 0.1 mol × 6.022 × 10^23 molecules/mol
- Number of molecules = 6.022 × 10^22 molecules
4. Determine the total number of atoms in a single molecule of C6H12O6:
- C6H12O6 contains 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms.
- Total atoms = 6 C + 12 H + 6 O = 24 atoms
5. Multiply the number of atoms per molecule by the number of molecules:
- Total atoms in 18 g of C6H12O6 = 24 atoms/molecule × 6.022 × 10^22 molecules
- Total atoms = 1.445 × 10^24 atoms
Therefore, there are approximately 1.445 × 10^24 atoms present in 18 g of C6H12O6.
