A sealed canister contains gas X. The mass of the canister decreases by 1.60 g when 1.20 dm3 of gas X is released at room temperature and pressure.
The molar volume of a gas at room temperature and pressure is 24 dm3 mol-1.
| Gas | Relative formula mass, MrM_rMr |
|---|---|
| Hydrogen | 2 |
| Methane | 16 |
| Oxygen | 32 |
| Carbon dioxide | 44 |
Calculate the relative formula mass, MrM_rMr, of gas X. Use the table to name gas X.
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.