A technician prepares two gas sampling bags at room temperature and pressure. Bag N and bag S contain equal volumes of gas. Bag N contains nitrogen, N2\text{N}_2N2, and bag S contains sulfur dioxide, SO2\text{SO}_2SO2. The empty bags have equal masses.
The relative formula masses are 28 for nitrogen and 64 for sulfur dioxide.
Which statement about the readings when the filled bags are placed on a balance is correct?
Bag N gives the larger reading because equal gas volumes contain more moles of the gas with the smaller relative formula mass.
The bags give the same reading because gases occupying equal volumes at the same temperature and pressure have equal masses.
Bag S gives the larger reading because equal gas volumes contain more moles of the gas with the greater relative formula mass.
Bag S gives the larger reading because equal gas volumes contain equal amounts in moles and sulfur dioxide has the greater relative formula mass.
100 exam-style questions on AQA GCSE Chemistry 3.5 Use of amount of substance in relation to volumes of gases, covering 3.5.1 Volumes of gases. Each one has a worked solution and a mark scheme showing where the marks go.