A sample of an unknown gas from a cylinder is collected over water in the apparatus shown above. [VI — States of Matter Chemistry Question
Question
A sample of an unknown gas from a cylinder is collected over water in the apparatus shown above. [VISUAL] After all the gas sample has been collected, the water levels inside and outside the gas collection tube are made the same. Measurements that must be made to calculate the molar mass of the gas include all of the following EXCEPT
A.
atmospheric pressure
B.
temperature of the water
C.
volume of gas in the gas-collection tube
D.
initial and final mass of the gas cylinder
E.✓ Correct
mass of the water in the apparatus
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