1. Find the molar mass of H2O2:
* Hydrogen (H) has a molar mass of approximately 1.01 g/mol.
* Oxygen (O) has a molar mass of approximately 16.00 g/mol.
* H2O2 has two hydrogen atoms and two oxygen atoms: (2 * 1.01 g/mol) + (2 * 16.00 g/mol) = 34.02 g/mol
2. Use the molar mass to convert moles to grams:
* grams = moles * molar mass
* grams = 4.56 moles * 34.02 g/mol
* grams = 155.11 g (approximately)
Therefore, there are approximately 155.11 grams in 4.56 moles of H2O2.