Hydrofluorocarbons (HFCs) are widely used in modern refrigeration and air-conditioning systems as replacements for older ozone-depleting substances, though many are being phased down due to their high global warming potential. One such hydrofluorocarbon has the following composition by mass:
Calculate the empirical formula of this compound. [Relative atomic masses: C=12.0\text{C} = 12.0C=12.0, H=1.0\text{H} = 1.0H=1.0, F=19.0\text{F} = 19.0F=19.0]
The relative formula mass (MrM_rMr) of this compound is 102. State its molecular formula.
80 exam-style questions on Edexcel IGCSE Chemistry Chemical formulae, equations and calculations. Each one has a worked solution and a mark scheme showing where the marks go.