Question

Calculate number of atoms of hydrogen present in
5.6g of urea (molar mass of urea = 60g mol-').
Also calculate number of atoms of N, C and O​

Answer 1

Answer:

Urea is H2NCONH2. One mole of urea has 4 moles of hydrogen. One mole of urea means 60 grams. So 60 grams urea contains 4 moles of hydrogen. So (5.6 ÷ 60 )× avogaronumber× 4 hydroges are there