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प्रश्न
The mass of an oxygen atom is 16.0 u. Express it in kg.
बेरीज
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उत्तर
Given:
Mass of one atom of oxygen = 16 u
1 u = 1.66 × 10-27 kg
∴ The mass of an atom of oxygen
kg = 16 × 1.66 × 10-27
= 26.56 × 10-27
= 2.656 × 10-26 kg
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