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प्रश्न
Calculate the number of atoms of the 52 g of He.
संख्यात्मक
उत्तर
4 g of He = 6.022 × 1023 atoms of He
∴ 52 g of He = `(6.022xx10^23xx52)/4` atoms of He
= 7.8286 × 1024 atoms of He
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पाठ 1: Some Basic Concepts of Chemistry - EXERCISES [पृष्ठ २८]
