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Question

calculate the number of oxygen atoms in 0.1 mol of oxygen gas​

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Solution

Number of molecules = Mole × Avogadro numberNumber of atoms= Mole × Avogadro number × No of atoms in the molecule. = 0.1 × 6.022 ×1023 × 2 (oxygen has O2 and has 2 atoms) = 1.204 × 1023 atoms

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