I don’t know what you are trying to ask complete my but here are the steps to a scientific investigation i hope this helps you
To find or discover by investigation?
the action and reaction do not lead equilibrium if action and reaction force react on different objects
So base on your question that as if the vapors volume were to incorrectly recorded as 125ml, the effect of the error to calculate the molar mass is the same as the error in measuring the volume of the vapor. I hope you are satisfied with my answer and feel free to ask for more
Answer:

Explanation:
From the question we are told that
Weight 
Altitude 
Speed 
Generally the equation for Potential energy ids mathematically given as



