Lab Report
# Now You See It – Copper Cycle Lab
The purpose of the lab is to discover what happens when someone executes a series of procedures, beginning with copper metal. What is done | What is observed | 1. Started with copper, Cu (s). | reddish, brownish, orange-ish, powder-like | 2. Added nitric acid, HNO3 (aq). | acid turns blue and smells like chlorine. | 3. Added water, H2O (l). | stayed the same | 4. Added sodium hydroxide, NaOH (aq). | changed consistency, gel-like | 5. Heated the mixture | becomes darker, dark-brown-like, shavings | 6. Filtered the solid and added sulfuric acid, H2SO4 (aq), to it. | sulfuric acid cleans off the copper | 7. Added zinc, Zn (s). | bubbles, zinc turns white | 8. Poured off liquid and rinsed | reddish specs, blue-ish liquid |
Materials * 250 mL beaker * 100 mL beaker * 2 graduated pipettes * 50 mL graduated cylinder * Funnel and filter paper * Spatula * Copper power, o.i g * 8 M nitric acid, HNO3, 2 mL * 1 M sulfuric acid, H2SO4, 15 mL * 8 M sodium hydroxide, NaOH, 2 mL * Stirring rod * Hot plate * Beaker tongs * Balance * Zinc fillings, 0.1 g Procedure | Symbol of chemical added | Observations | Formula and name of copper compound | What happened to the copper? | Got a sample of copper | Cu (s) | Orange-brown powder | Cu (s) solid copper powder | Nothing yet. | Added nitric acid | HNO3 (aq) | blue-ish liquid forms | Cu(NO3)2 (aq) copper nitrate | dissolves into liquid state | Added sodium hydroxide | NaOH (aq) | small blue-ish chunks form | CuOH (s)copper hydroxide | clumps into blue-ish chunks | Added heat (removes H2O) | none | solution becomes muddy black-ish | CuO (s)copper oxide | heated into small, black, metallic almost shards | Added sulfuric acid | H2SO4 (aq) | turns shards and liquid blue-ish color | CuSO4 (aq)copper sulfate | joins the sulfate after filtering | Added zinc | Zn (s) | small, orange, metallic shards form in blue
The purpose of the lab is to discover what happens when someone executes a series of procedures, beginning with copper metal. What is done | What is observed | 1. Started with copper, Cu (s). | reddish, brownish, orange-ish, powder-like | 2. Added nitric acid, HNO3 (aq). | acid turns blue and smells like chlorine. | 3. Added water, H2O (l). | stayed the same | 4. Added sodium hydroxide, NaOH (aq). | changed consistency, gel-like | 5. Heated the mixture | becomes darker, dark-brown-like, shavings | 6. Filtered the solid and added sulfuric acid, H2SO4 (aq), to it. | sulfuric acid cleans off the copper | 7. Added zinc, Zn (s). | bubbles, zinc turns white | 8. Poured off liquid and rinsed | reddish specs, blue-ish liquid |
Materials * 250 mL beaker * 100 mL beaker * 2 graduated pipettes * 50 mL graduated cylinder * Funnel and filter paper * Spatula * Copper power, o.i g * 8 M nitric acid, HNO3, 2 mL * 1 M sulfuric acid, H2SO4, 15 mL * 8 M sodium hydroxide, NaOH, 2 mL * Stirring rod * Hot plate * Beaker tongs * Balance * Zinc fillings, 0.1 g Procedure | Symbol of chemical added | Observations | Formula and name of copper compound | What happened to the copper? | Got a sample of copper | Cu (s) | Orange-brown powder | Cu (s) solid copper powder | Nothing yet. | Added nitric acid | HNO3 (aq) | blue-ish liquid forms | Cu(NO3)2 (aq) copper nitrate | dissolves into liquid state | Added sodium hydroxide | NaOH (aq) | small blue-ish chunks form | CuOH (s)copper hydroxide | clumps into blue-ish chunks | Added heat (removes H2O) | none | solution becomes muddy black-ish | CuO (s)copper oxide | heated into small, black, metallic almost shards | Added sulfuric acid | H2SO4 (aq) | turns shards and liquid blue-ish color | CuSO4 (aq)copper sulfate | joins the sulfate after filtering | Added zinc | Zn (s) | small, orange, metallic shards form in blue