BISC 101 Lecture Notes - Lecture 2: Filter Paper, Paper Towel, Boiling Chip
4 Dec 2017
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Copper metal will be dissolved using nitric acid using oxidation-reduction rxn. This metal hydroxide then heated to make oxide through dehydration step. Copper oxide will get dissolved in acid and copper ion will be reduced back to metallic state using zinc. Oxidative dissolution of cu to form cu(no3)2 fades and copper dissolved, add 10ml h2o. Formation of cuo heat tongs and stir beaker to 250ml beaker. Put ~10ml of 1. 0m h2so4 into graduated cylinder and use this acid to rinse paper in funnel to filter blue solution and remove old paper and boiling the washing the cuo doesn"t have to be that dry. Formation of cuso4 beaker with cuo and stir to dissolve. overflow large test tube) Pipette ~1ml(10 drops) of solution from step 5 into another test tube and add - reference solution by adding ~1ml of 0. 1 m cuso4 (cu2+) into test.
