ASAP PLEASEE A certain amount of Argon has 2.4x10^24 atoms. Going backwards from Atoms to Grams, how many grams of Ar would that

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2 years ago

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be?

1 answer:

Dima020 [189] · Answer 1 · 2023-05-15T22:50:43+03:00

The required mass of argon in given number of atoms of argon is 155.61 grams.

<h3>What is Avogadro's number?</h3>

Avogadro's number is the number of atoms which are present in 1 mole of any substance and it is equal to 6.022×10²³.

Relation between the mass and moles of any substance will be represented as:

So, moles of argon will be calculated by using given number of atoms as:

Moles = 2.4×10²⁴ atoms / 6.022×10²³ atoms per mole

Moles = 3.9 moles

Now mass will be:

W = (3.9mol)(39.9g/mol) = 155.61 g

Hence required mass of argon is 155.6g.

To know more about Avogadro's number, visit the below link:

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