Purpose: Find how much silver is produced from 1g of silver nitrate.
Hypothesis: If silver nitrate is mixed with copper wire, then one gram of silver precipitate will form on the wire.
Materials: Silver nitrate solution, copper wire, distilled water, test tube, beaker, filter paper and small funnel.
Procedure: Pour 1g of silver nitrate solution into the test tube, leaving enough room left for the copper wire. Carefully put on 30cm of copper wire into the test tube and tape over the opening of the tube. Let the wire sit in the solution for 24 hours. Upon return, position the funnel over the opening of the beaker and roll the filter paper to create a cone to catch any precipitate that may have formed from the reaction. Next, carefully remove the tape from the test tube and pour out the excess solution into the filter paper cone. Then, lightly spray the copper wire with distilled water, getting off any precipitate from the wire and into the paper cone. Once all remaining precipitate is in the filter paper, weigh the wire and the precipitate separately.
Conclusions: 0.35g of silver was produced from the reaction and 0.247g of copper was lost. Our original hypothesis was proven wrong, due to a miscalculation in stoichiometric equations which led us to the aproximate result of 1g of precipitate.
Where are the calculations? That was sort of the point of the lab.
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