Answer:
1562 g
Explanation:
Step 1: Given data
Number of atoms of copper: 1.480 × 10²⁵ atoms
Step 2: Calculate the moles corresponding to 1.480 × 10²⁵ atoms of copper
We will use the Avogadro's number: there are 6.022 × 10²³ atoms of Cu in 1 mole of atoms of Cu.
1.480 × 10²⁵ atom × (1 mol/6.022 × 10²³ atom) = 24.58 mol
Step 3: Calculate the mass corresponding to 24.58 moles of copper
The molar mass of Cu is 63.55 g/mol.
24.58 mol × 63.55 g/mol = 1562 g (with 4 significant figures)
