Chemistry 9701 · AS & A Level · States of matter

States of matter — practice question

For this question, assume that methane behaves as an ideal gas. The gas laws are represented by the ideal gas equation shown below. $pV = nRT$ A sample of methane has a measured volume at a temperature of $60\,^{\circ}\text{C}$ and a pressure of $103\,\text{kPa}$. The recorded volume is $5.37 \times 10^{-3}\,\text{m}^3$. Calculate the mass of the methane sample, correct to two significant figures.

  • A0.0032 g
  • B0.018 g
  • C3.2 g
  • D18 g

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