An iron atom has a mass of * 9.2710-23g and a cooking pot has a mass of 0.500kg

The number of iron atoms in a cooking pot that has a mass of 0.500 kg can be solve by dividing it by the mass of the iron atom.

Number of iron atoms = (0.5 kg) (1000g / 1kg) (1 iron atom / 9.27 x 10^-23 g)

Number of iron atoms = 5.39 x 10 ^24 iron atoms