Silver/Copper Replacement Lab

Which I was gone for, but here it is regardless.

Procedure (Day 1):

1. Obtain 30cm of bare copper wire. Clean the wire, then coil it around a pencil to form a loose spring. Make sure that the other end of the wire reaches the top of your test tube and is uncoiled.
2. Weight the coil with a balance, then place the copper wire in the test tube to check that is is the correct length. Remove the coil and set it aside for later.
3. Weight the weighing dish of silver nitrate and record it's number. 
4. Transfer the contents of silver nitrate to your test tube.
5. Pour distilled water into your test tube until the water is about 2 cm from the top.
6. Cover the top of the test tube with parafilm.
7. Place your thumb on top of the test tube and invert it until all the silver nitrate is disolved. 
8. Weigh the empty weighing dish so that you can determine the mas of silver nitrate that was added to the test tube.
9. Add the copper coil to the test tube.
10. Set the tube aside until the next day or class period.
11. Make sure all data is recorded.

Procedure (Day 2):

1. Weigh a piece of fiter paper for use in separating the silver.
2. Shake the test tube and copper wire to dislodge the silver.
3. Set up a funnel with your filter paper in it.
4. With a waste beaker beneath the funnel, lift the copper wire out of the test tube and hold it over the filter system.
5. Using a water bottle, let D.I. water fun down the wire so that any silver will wash into the filter.
6. Lay the copper wire on a labeled piece of paper to allow it to dry.
7. Pour off the solution in the test tube through the filter paper into the filter, trying to keep the silver precipitate in the test tube.
8. Rinse with distilled water and decant several times into the filter to wash the silver.
9. Finally wash the silver from the test tube onto the filter paper.
10. Allow to dry overnight. 

Procedure (Day 3):

1. Weigh the copper coil and record it's mass.
2. Weigh the silver and filter paper - record the mass.

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Mass of silver nitrate = 1.028 grams

Mass of copper coil before reaction = 3.408 grams

Mass of copper coil after reaction = 3.193 grams

Mass of copper reacted = .215 grams

Mass of filter paper & silver = 1.726 grams

Mass of filter paper = 1.420 grams

Mass of silver produced in reaction =.360 grams

Moles of silver produced = .0028 mols

Moles of copper consumed during reaction = .0033 mols

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The balanced equation fo this reaction is:  2AgNO3 + Cu  ->  Cu(No3)2 + 2Ag

.65 grams of Ag were formed

.77 grams of Cu became Cu(No3)2