Calculate the volume that 4.93 moles of gas will occupy at a pressure of 1.50 atm and a temperature of 65.40C. The universal gas constant (R) is
0.0821 (L atm)/(mol-K). Type your answer with the correct number of sig
figs and units.

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. 

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As cooking food that has to go in the oven