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Write brief answers to the following question:
The mass of one steel screw is 4.11 g. Find the mass of one mole of these steel screws. Compare this value with the mass of the Earth (5.98 × 1024kg).
Which one of the two is heavier and by how many times?
Which one of the two is heavier and by how many times?
One mole of screws weigh = × 10^2{^4} g.
= × 10^2{^1} kg.
Mass of the earth / Mass of 1 mole of screws = 5.98 x 10^2{^4}kg / 2.475 × 10^2{^1}kg.
= x 10^3.
Mass of earth is 2.4 x 10^3 times the mass of screws.
The earth is 2400 times heavier than one mole of screws.
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