Final answer:
The unsaturation number for C₅H₈N₂ is 13.
Step-by-step explanation:
In chemistry, the unsaturation number, also known as the degree of unsaturation (DoU), is a measure of the number of π bonds and rings present in a molecule. π bonds are formed by the overlap of unhybridized p orbitals and can be found in double bonds and triple bonds. Rings are formed when atoms are connected in a closed chain. For example, for the molecular formula C₅H₈N₂, you can determine the unsaturation number using the formula:
- Unsaturation Number = 2 + (2 × Number of H) - Number of C
In the case of C₅H₈N₂, the number of H is 8 and the number of C is 5. Plugging these values into the formula, we get:
- Unsaturation Number = 2 + (2 × 8) - 5 = 2 + 16 - 5 = 13
So, the unsaturation number for C₅H₈N₂ is 13.