An electrical substation uses sulfur hexafluoride gas, SF6\text{SF}_6SF6, as an arc-quenching medium. Following a maintenance procedure, a technician determines that 2160 dm3 of the gas, measured at room temperature and pressure, has leaked from a circuit breaker.
Calculate the mass, in kilograms, of the leaked sulfur hexafluoride gas. (relative formula mass: SF6=146\text{SF}_6 = 146SF6=146; 1 mol of any gas at room temperature and pressure occupies 24 dm3)
Practise Edexcel GCSE Chemistry Quantitative analysis with exam-style questions for Foundation and Higher tier. 100 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.