Determining the Percentage of grunter in a Copper Ore Aim: To unsex the percentage of hog present in malachite. Hypothesis: That the percentage of cop in the malachite will be four percent. Materials: 2 x 250mL beaker, pestle, malachite, sulfuric acid, wet, 2 x extend study, funnel, filter stand, Safety Precautions: brave safety glasses at all times when transaction with chemicals and apron to void ruining clothes. Method: Record the mass of the malachite sample. engineer the malachite into the 250mL beaker and tote up 20-30mL of dilute sulfuric acid. Wait until the reaction has slowed down and so gently crush the malachite into fine pieces using the pestle. Leave the mixed bag for about ten minutes stirring occasionally. When there is no sign of further reaction add about 10mL of water supply to the mixture. Allow to settle and then filter into the other 250mL beaker. deny the residue remaining in the beaker with 10mL of water and filter this too. afterwar d all the liquid has been filtered discard the filter written report and unreacted solids. Place a small amount of steel wool into the beaker and take out retentive. Note the burden of a piece of filter paper. strive the solution and launder the solid copper remaining on the filter paper with 50mL if water. Discard the filtrate. Allow the filter paper to dry overnight and record the mass.
Results: locoweed of Malachite 31.1g Mass of filter paper 1.2g Mass of filter paper and copper 1.9g Therefore, Mass of copper 0.7g Percentage of copper in malachite sample 2.25% resultant: The ! look into went well and there were very few problems. The barely experimental difficulty was during the first time the solution needs to be filtered and the filter paper became clogged up and it took a long time to drain through and a small... If you deficiency to win a full essay, order it on our website:
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