3 years ago

How many atoms are in 0.075 mol of helium

Chemistry

1 answer:

UNO [17]3 years ago

3 0

Answer:

4.52 ×10²² atoms (3 s.f.)

Explanation:

Number of atoms

= number of moles × Avogadro's constant

= number of moles × 6.022 ×10²³

Number of atoms

= 0.075 × 6.022 ×10²³

= 4.52 ×10²² (3 s.f.)

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