Answer:
38.1g
Step-by-step explanation:
Determine the molar mass of aluminum (Al): 26.98 g/mol
Convert the number of atoms of Al to moles of Al:
8.50×10^23 atoms Al × (1 mol Al/6.022×10^23 atoms Al) = 1.41 mol Al
Calculate the mass of Al in the foil using the molar mass:
1.41 mol Al × 26.98 g/mol = 38.1 g
Therefore, the mass of the aluminum foil is 38.1 g.