Wednesday, February 27, 2013

Finding The Formula Of An Oxide Of Copper 1

IGCSE Chemistry finding the formula of an oxide of crap

The chemical formula gives the types of tinge in the substance. It also gives the relative number of each type. From the plurality of each element in a sample, the number of moles roll in the hay be calculated. The lowest whole number ratio provides the simplest chemical formula.
In this experiment methane is be used to turn copper color oxide into copper. Methane is passed over a heated sample of copper oxide in a tube. Most of the methane does not react it is burnt false at the exit of the tube.
During the experiment, you can see a distort change as macabre copper oxide becomes red-brown copper.
Once the black copper oxide has all turned into copper, heating can stop, simply the methane is still passed over the hot copper until it cools down.

|[pic] |What to do |
| |1. weigh the test-tube + bung. |
| |2. Place two spatulas of a copper oxide in the pith of the tube. Try to spread it|
| |out.

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| |3. Weigh the tube + bung + copper oxide. |
| |4. Assemble the apparatus as shown in the diagram. |
| |5. Pass a gentle stream of gas through the tube without illumine it. This will |
| |flush out the air. After a fewer seconds set light to...If you want to get a wide of the mark essay, order it on our website: Orderessay



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