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प्रश्न
What is the mass of nitrogen in 1000Kg of urea [CO(NH2)2] ?
[H = 1, C= 12, N= 14, O = 16]
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उत्तर
Molecular mass of urea is =60
60kg of urea has = 28 Kg of nitrogen
1000Kg of urea will have = 28 x 1000/60 = 466.66 or 467 Kg.
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