1. Convert grams to moles:
* Divide the mass of the compound (1.45 g) by its molar mass (237 g/mol):
1.45 g / 237 g/mol = 0.00612 mol
2. Use Avogadro's number to find representative particles:
* Multiply the number of moles by Avogadro's number (6.022 x 10^23 particles/mol):
0.00612 mol * 6.022 x 10^23 particles/mol = 3.68 x 10^21 particles
Therefore, there are approximately 3.68 x 10^21 representative particles in 1.45 g of the molecular compound.
