Final answer:
To determine the molar mass, we need additional information such as the identity of the substance or the number of moles. Without that information, it is not possible to calculate the molar mass.
Step-by-step explanation:
The molar mass of a substance can be calculated using the formula:
Molar mass = Mass / Moles
In this case, we are given the mass of the substance (14.2g) and the pressure (1.1 atm), but we are not given the number of moles. So, we cannot directly calculate the molar mass.
To determine the molar mass, we need additional information such as the identity of the substance or the number of moles. Without that information, it is not possible to calculate the molar mass.