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Q. Calculate the number of atoms of hydrogen present in 5.6 g of urea, (NH2)2CO. Also calculate the number of atoms of N, C and O.

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Answer​​​​​​Solution

No of atoms of H= 2.24× 1023 , N= 1.124× 1023 , C= 0.562×1023, O= 0.562× 1023

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