Final answer:
The student's question involves the physics of polymers, specifically the calculation of the mean square distance between the ends of a polypropylene chain. Since the question lacks specific details, an exact numerical answer cannot be provided without further information on the polymer's properties. However, this falls within the realm of physical principles applied to materials science.
Step-by-step explanation:
The question asked by the student involves calculating the mean square distance between the ends of a polypropylene molecule. This calculation can be related to the statistical properties of polymers in the context of physics or materials science. To provide an accurate answer, a clear understanding of polymer chain configurations and models such as the random coil model would be necessary. Such a mean square distance is reliant on factors like the number of monomer units, bond lengths, and bond angles in the polypropylene chain.
However, the original question as provided seems to lack specific details that are critical to perform the calculation. Typically, the Flory's theorem or the Gaussian chain model could be applied in such cases to estimate the mean square end-to-end distance of a polymer. Without these specifics, it is not possible to give a precise numerical answer, but it is clear that this is a question involving the application of physical principles to polymer science.