We will fill the syringe with the unknown gas.

The syringe needle is inserted into the septum.

 

Pulling the plunger back fills the syringe with gas.

Click for a movie.

After filling the syringe it is found to have a mass of 42.8570 grams. Therefore, the mass of the gas is 42.8570 - 42.8570 = 0.0541 grams. We need to plot this value on our calibration curve.


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