The mass of one steel screw is 4.11g. Find the mass of one mole of these steel screws. Compare this value with the mass of the Earth (5.98 x 1024kg). Which one of the two is heavier and by how many times?
One mole of screws weigh = 2.475 × 1024 g = 2.475 × 1021 kg
Mass of earth is 2.4 ×103 times the mass of screws
The earth is 2400 times heavier than one mole of screws.
