Calculate the number of atoms in
1) 52 moles of He
2)52 g of He
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Explanation:
(1) 1 mole of He = 6.022 × 10²³atoms,
Nom of atoms =52 × 6.022 × 10²³
= 313.144 × 10²³ atoms.
=3.13144×10²⁵ atoms
(2) Atomic mass of He = 4u
No. of moles =52/4
= 13
no. of atoms = 13 ×6.022 × 10²³
=78.286 × 10²³atoms
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