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प्रश्न
The mass of an oxygen atom is 16.00 u. Find its mass in kg.
उत्तर
MASS OF OXYGEN = 16 u.
1 u = 1.66 × 10-27 kg
kg = 16 × 1.66 × 10-27
= 26.56 × 10-27
= 2.656 × 10-26 kg
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