Experiment to measure the relative molecular mass of a volatile liquid using a conical flask

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6 Terms

1
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Draw a diagram of this experiment

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<p>…</p>
2
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Step 1

Find mass of conical flask rubber band and aluminium cap.

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Step 2

Pour acetone in conical flask and place aluminium on top with rubber band and make a small pin hole

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Step 3

Evaporate off acetone and note temperature it all evaporates at and remove it from heat for it to recondense.

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Step 4

Reweigh with condensed gas and find volume of entire conical flask

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How was pressure measured?

Pressure sensor/ barometer