Question

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 × 1024kg). which one of the two is heavier and by how many times?

WhatsApp

Answer

1 mole of steel screws = 6.022 x 1023 screws

Mass of 1 screw = 4.11g

Mass of 1 mole of screws = 4.11 x 6.022 × 1023 g

= 24.75 x 1023 g

= 2.475 x 1024 g

One mole of screw weighs = 2.475 x 1024 g

= 2.475 x 1021 kg

Mass of the substance/Molar mass

= 5.98 × 1024 kg / 2.475 × 1021 kg

= 2.4 x 103

Mass of Earth is 2.4 × 103 times the mass of screws.

The Earth is 2400 times heavier than one mole of screws.

Was this answer helpful?

Didn't liked the above answer ?

Text Generation Tool