A-LevelChemistryStates of matter9701/12 · Oct/Nov 2019 · Q51 Mark

In this question you should assume the vapour behaves as an ideal gas. 0.175g of a volatile liquid produces a vapour of volume 4.50 × 10⁻⁵m³ at 100 °C and pressure of 1.013 x 10⁵ Pa. What is the Mr of the liquid?

A31.9

B87.1

C119

D127

✓ Correct answer

C: 119

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Topic: States of matter, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Oct/Nov 2019 Paper 1 Variant 2, question 5.

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