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A

Anonymous

Nov 06, 2024

What volume of aluminum has the same number of atoms as 10 cm^3 of mercury?

What volume of aluminum would contain the same number of atoms as 10 cm³ of mercury?

1 Answers

A
Anonymous

Jan 26, 2025

The density of Aluminum is 2.7 grams / cm^3

The Atomic weight of Aluminum is 27.

The density of Mercury is 13.5 grams / cm^3

The atomic weight of Mercury is 200.6.

10 cm^3 of Mercury weighs 135 grams.

135 grams Hg / 200.6 grams per mole Hg gives 0.673 moles of Mercury atoms.

0.673 moles of Aluminum x 27 grams per mole Al gives 18.2 grams of Aluminum.

18.2 grams Al / 2.7 grams per cm^3 = 6.7 cm^3.

The Aluminum atoms are so much smaller they pack into a smaller volume than Mercury Atoms.

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