Can u tell me the practical details of how you would prepare 0.5mol/dm3 hydrochloric acid solution from a stock of 34% (w/w) with a relative density of 1.18.
Figure the number of moles per liter of the concentrate. Say is is 17 for example sake.
You want a dilution of 17/.5 or 34, so add one part conc acid to 33 parts water