Copper Carbonate Lab
Decomposing Copper Carbonate
Mass of Crucible (g) Mass of CuCo3 added (g) Mass of Crucible + Copper Oxide (g) Mass of CuO produced (g) 0.00 0.25 0.50 0.75 1.00 1.25
What happens to the mass of the copper carbonate when it is heated? Give a conclusion, which describes why the mass of copper carbonate may have changed during your experiment.
When the copper carbonate is heated it decomposes forming copper oxide and carbon dioxide. The copper carbonate turns into a bright red while it is being heated. After the Bunsen burner has been turned off, the copper carbonate turns black, as it has formed CuO.
Metal carbonates such as calcium carbonate break down when heated strongly. This is called thermal decomposition.
Mass of Crucible (g) Mass of CuCo3 added (g) Mass of Crucible + Copper Oxide (g) Mass of CuO produced (g) 0.00 0.25 0.50 0.75 1.00 1.25
What happens to the mass of the copper carbonate when it is heated? Give a conclusion, which describes why the mass of copper carbonate may have changed during your experiment.
When the copper carbonate is heated it decomposes forming copper oxide and carbon dioxide. The copper carbonate turns into a bright red while it is being heated. After the Bunsen burner has been turned off, the copper carbonate turns black, as it has formed CuO.
Metal carbonates such as calcium carbonate break down when heated strongly. This is called thermal decomposition.