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Example Question - 2

AQA AS-level ChemistryAmount of SubstanceLesson 18 of 33

A student determined the relative molecular mass, Mr, of an unknown volatile liquid Y in an experiment as shown in the diagram.

Diagram

The student used a hypodermic syringe to inject a sample of liquid Y into a gas syringe in an oven.

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Key terms in this lesson

Relative molecular mass
The weighted mean mass of a molecule compared to 1/12th the mass of a carbon-12 atom.

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