Chemistry method topic 5 0.0 / 5 ? ChemistryAcids, bases and saltsGCSEWJEC Created by: Eloisew101Created on: 13-12-14 16:15 what is the first step of how to obtain crystals from insoluable bases and carbonates You first need to put goggles on and tie hair back 1 of 7 second step measure out 50cm3 of sulphuric acid (any acid) into a 250cm3 beaker. 2 of 7 step 3 add a spatula of copper oxide(base) powder and stir the mixture untill it has reacted. 3 of 7 step 4 warm the acid using a bunsen burner. don't let it get hotter than 60c (we did not do this stage as this can be dangerous) 4 of 7 step 5 add copper oxide untill there is lumps of copper at the bottem. 5 of 7 step 6 filter the mixture. 6 of 7 step 7 evaporate half of the liquid and then leave to cool. 7 of 7
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