Calculate the number of moles and molecules of urea present in 5.6 g of urea .
( Molecular formula of urea H2NCONH2)
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number of moles of urea = 5.6g/60g/mol
=0.0933 mol
molecules of urea = 0.0933*0.023*10^23
= 0.5621*10^23
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