Answer:
2.02 × 10²³ atoms
Explanation:
Step 1: Calculate the moles corresponding to 37.8 g of cadmium
To convert mass to moles, we need a conversion factor: the molar mass. The molar mass of cadmium is 112.41 g/mol.
37.8 g × 1 mol/112.41 g = 0.336 mol
Step 2: Calculate the number of atoms in 0.336 moles of cadmium
To convert moles to atoms, we need a conversion factor: Avogadro's number. In 1 mole of atoms of cadmium, there are 6.02 × 10²³ atoms of cadmium.
0.336 mol × 6.02 × 10²³ atoms/1 mol = 2.02 × 10²³ atoms
