Question

How many particles are in 54.5 g of aluminum? Show your work.

A. Convert the mass of aluminum to moles of aluminum. Molar mass of aluminum (Al) = 26.98 g/mol
B. Convert the moles of aluminum to particles of aluminum. There are 6.02 x 1023 particles/mol.

Answer 1

There are 1.216x10^24 particles in 54.5g of aluminum.

A. 54.5/26.98 = 2.02mols of aluminum

B. 2.02mols*6.02x10^23 particles/mol = 1.216x10^24