Question

The mass of one steel screw is 4.11 g. Find the mass of one mole of these steel screws. Compare the value with the mass of the Earth (5.98 x 10²⁴ kg). Whic one of the two is heavier and by how many times?

Answer 1

Mass of 1 mole of steel screw will be = 4.11g x 6.023 x10²³ = 24.74 x 10²³ = 2.47 x 10²⁴ g = 2.47 x 10²¹ Kg
So of course earth is heavier than one mole of steel screw.
To find how many time let us divide it: 5.98 x 10²⁴ / 2.47 x 10²¹ = 2.42 x 10³ times