In the determination of the molar mass of a vapor, the data shown on the table was collected. Based on the data given, calculate:
R=0.0821 L-atm/mol-K
157.56 g
96°C
720 torr
158.21 g
Mass of flask, Al-foil and rubber
band
Temperature of boiling water
Atmospheric pressure
Mass of flask, Al-foil, rubber band
and vapor
Mass of vapor
Volume of flask
Mole of vapor
Molar mass of vapor
159.5 mL
The molar mass of the vapor is
g/mole.
130.3
24,56
491.7
20.22

Mass is the amount of matter in an object.  weight is the measurement of the pull of gravity on an object.  say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165)  now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon.  however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant.  in conclusion it is possible for your weight to change as your mass remains constant. 

The mole ratio of hydrogen to ammonia is 3: 2.

2licl + 3o2 i yook the test and it was correct.