Urea is an organic compound widely used as a fertilizer. Its solubility in water allows it to be made into aqueous fertilizer so
lutions and applied to crops in a spray.
H2N-CO-NH2
What is the maximum theoretical number of water molecules with which one urea molecule can hydrogen bond? (Exact whole number required.)
H2N-CO-NH2
What is the maximum theoretical number of water molecules with which one urea molecule can hydrogen bond? (Exact whole number required.)
1 answer:
Answer:
One urea molecule can make hydrogen bonding with 8 water molecules
Explanation:
- Hydrogen bonding takes place between lone pair of electronegative atoms (O,N and F) and H atom attached with those electronegative atoms.
- Draw the lewis structure of urea and determine how many lone pairs and H atoms are available for hydrogen bonding formation.
- Theoretically one urea can make hydrogen bonding with 8 water molecules.
- Representation of hydrogen bonding has been given below.
You might be interested in
Answer:
b. Second order in NO and first order in O₂.
Explanation:
A. The mechanism
B. The rate expressions
The last expression is the rate law for the slow step. However, it contains the intermediate N₂O₂, so it can't be the final answer.
C. Assume the first step is an equilibrium
If the first step is an equilibrium, the rates of the forward and reverse reactions are equal. The equilibrium is only slightly perturbed by the slow leaking away of N₂O₂ to form product.
D. Substitute this concentration into the rate law
The reaction is second order in NO and first order in O₂.