What is the mass of 3.8 × 10^24 atoms of argon (ar)? 0.0039 g 0.16 g 6.3 g 250 g

Answer : The mass of argon will be, 250 grams

Explanation : Given,

Number of atoms of argon =

As we know that, 1 mole of substance contains number of atoms.

First we have to calculate the moles of argon.

As, number of argon atoms present in 1 mole of argon

So, number of argon atoms present in mole of argon

The moles of argon = 6.31 mole

Now we have to calculate the mass of argon.

The mass of argon = 252.4 grams that is approximately equal to 250 grams.

Therefore, the mass of argon will be, 250 grams.

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