1. Find the number of moles of water:
* Molar mass of water (H₂O): 18.015 g/mol (1.008 g/mol for H x 2 + 15.999 g/mol for O)
* Moles of water: (36 g) / (18.015 g/mol) = 2 moles
2. Calculate the number of molecules of water:
* Avogadro's number: 6.022 x 10²³ molecules/mol
* Number of water molecules: (2 moles) x (6.022 x 10²³ molecules/mol) = 1.2044 x 10²⁴ molecules
3. Determine the total number of atoms:
* Atoms per water molecule: 3 (2 hydrogen atoms + 1 oxygen atom)
* Total number of atoms: (1.2044 x 10²⁴ molecules) x (3 atoms/molecule) = 3.6132 x 10²⁴ atoms
Therefore, there are approximately 3.6132 x 10²⁴ atoms in 36g of water.
