Formula:

Given:
Density=3.4
Volume=500.0
Plug them into the formula:
Final answer: 1700g
Answer: m = 11.2 g C7H16
Explanation: First convert the mass of CO2 to moles. Then do the mole ratio between CO2 and C7H16 which is 7:1. Finally convert the moles of C7H16 to the mass of C7H16.
Solution attached.
Chemical property of plastic are compounds composed of carbon , hydrogen .