The densities of liquid and solid

Objective:- The aim of this experiment was to find the molar mass of unknown volatile liquid under known temperature and pressure.
Introduction
Molar mass or gram molar mass is the mass of the substance under consideration without distinguishing whether a substance is an element , a molecule or an ionic compound. These elements, molecules or ionic compound could be solid gas or liquid. The molar mass of gas or vapor could be measured if the gases obey the law of Ideal Gas . The mass of the gas is found under known temperature and pressure.
Method/procedure
To measure the unknown volatile liquid molar mass, the formal to be used is
PV=nRT, n=PV/RT and MM=g/n
The step helps to find the moral mass of the unknown volatile liquid is:-
Step 1. Measures the aluminum and the empty flask found 90.833g
Step 2. Filled with 5ml of unknown liquid
Step 3. The unknown liquid heated under 97'c
Step 4. The liquid vaporized, and removed it from the fire to be cool and condensed
Step 5 . 97.413 g of the condensed vapor with flask and aluminum
Step 6. Pressure was 763mmHG
Discussion
When the liquid heated , some of the vapor gas has gone through the hole to make pressure equal inside the flask and the outside atmosphere. . That means the pressure of the vapor has and the atmosphere was equal. The molar mass of the volatile liquid is calculated on the next page.
Conclusion
As the calculation has shown, the unknown volatile gas can be found , if we measure the mass , the volume of the substance , temperature, and pressure.
Error
This experiment might have errors when the vapor with the flask weighted. The other error would be the temperature that affects the result of the molar mass of the unknown gas. The temperature should be 100 to vapor all the liquid. The last error would be the volume measurement. Wen the volume of the flask is measured the water would be spilled and it will decrease the volume of the unknown liquid, in turn it could affect the molar mass of the gas.