Question

Calculate the number of moles and molecules of urea present in 5.6 g of urea .

( Molecular formula of urea H2NCONH2)​

Answer 1

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