1. Find the molar mass of H₂O:
* H: 1.01 g/mol (x 2 = 2.02 g/mol)
* O: 16.00 g/mol
* Total molar mass of H₂O: 2.02 g/mol + 16.00 g/mol = 18.02 g/mol
2. Use the formula:
* moles = mass / molar mass
3. Plug in the values:
* moles = 150.0 g / 18.02 g/mol
* moles ≈ 8.32 mol
Therefore, there are approximately 8.32 moles of H₂O present in 150.0 g of H₂O.
