1. Find the molar mass of CuO:
* Cu (Copper) has a molar mass of 63.55 g/mol
* O (Oxygen) has a molar mass of 16.00 g/mol
Therefore, the molar mass of CuO is 63.55 g/mol + 16.00 g/mol = 79.55 g/mol
2. Use the formula:
* moles = mass / molar mass
3. Plug in the values:
* moles = 3.2 g / 79.55 g/mol
* moles ≈ 0.0402 mol
Therefore, there are approximately 0.0402 moles present in 3.2g of CuO.