1. Calculate the molar mass of CuSO4:
* Cu: 63.55 g/mol
* S: 32.06 g/mol
* O: 16.00 g/mol (x 4)
* Total molar mass: 63.55 + 32.06 + (16.00 x 4) = 159.61 g/mol
2. Use Avogadro's number to convert molecules to moles:
* Avogadro's number: 6.022 x 10^23 molecules/mol
* Moles of CuSO4: (3.36 x 10^23 molecules) / (6.022 x 10^23 molecules/mol) = 0.558 moles
3. Calculate the mass in grams:
* Mass (g) = moles x molar mass
* Mass = 0.558 mol x 159.61 g/mol = 89.0 g
Therefore, 3.36 x 10^23 molecules of copper sulfate (CuSO4) weigh approximately 89.0 grams.
