Question

calculate the number of atoms of 52 moles of argon
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Answer 1

Answer:

3.131 × 10^25 atoms

Explanation:

number of atoms in 1 mole of Argon = 6.022×10²³

number of atoms in 52 moles of Argon = 52 × 6.022×10²³

= 3.131 × 10^25 atoms.

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Answer 2

Explanation:

• 52 mol of Ar=52× 6.022×1023 atoms of Ar

• =3.131×1035 atoms of Ar

• atomic mass of He=4amu

• or

• 4amu is the mass of He atoms=1

• there fore 52 amu is the mass of He atoms =0 . 25×52 =13 atoms of He

• gram atomic mass of He =4g