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	20 mL of conc (formula) and 10 mL of 2-methyl propan-2-ol are combined in a funnel. We use a [?] alcohol for this reaction since they are the most easily .
	As the liquids are mixed, the in the funnel must be released by opening the tap.
	Leave the mixture to separate into two layers, then drain off the , aqueous layer into a beaker and discard. Notice that the organic layer is no longer miscible in water. We have converted 2-methyl propan-2-ol (which is miscible in water) into , 2-methyl propane, which is not miscible in water.
	Add sodium carbonate solution to any remaining acid. Mix until the reaction has ceased, remembering to release the pressure as before.
	Drain off the aqueous layer as before, then transfer the organic product to a test tube.
	Add anhydrous [?] crystals. These will remove any remaining from the organic liquid.
	Pour the organic liquid into a distillation flask and set up the distillation apparatus. Connect the bottom hose of the condenser to the water [?] and put the upper hose in the [?].
	We separate the haloalkane formed from any unreacted [?] by collecting only that [?] which boils around 51 °C.