Final answer:
The molecular formula of the alkane represented in the mass spectrum is C6H14.
Step-by-step explanation:
The molecular formula of the alkane represented in the mass spectrum can be determined by analyzing the relative abundances of different mass peaks. Based on the given information:
- The peak at mass 100 has an 8% relative abundance.
- The peak with mass 85 has a 40% abundance.
- The peak at 71 has a 3% abundance.
- The peak at 57 has a 30% abundance.
- The peak at mass 43 has a 100% abundance.
- The peak at mass 29 has an 18% abundance.
We can calculate the number of carbon and hydrogen atoms in the alkane using the principles of alkanes. The molecular formula is C6H14.