calculate the mass of 5g molecules of nitrogen
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The molar mass is 14*2+1*4+12+16= 60 g/mole.
In this 60 g of urea, nitrogen has a mas of 28 g. So by simple proportion in 5 kg of urea, nitrogen has a mass = 5 kg*28 g/60 g = 2.3 kg
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Answer:
As nitrogen is diatomic it's GMM becomes 28 g. Hence 2 gram molecule of nitrogen weighs
2×28g = 56 g.
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