422-004+Lab+Mixtures+2

Observations Mass of sample: 19.10 g Mass of beaker: 76.86 g Water turned blue when copper chloride was added

Analysis Materials: Copper chloride mixture, filter paper, ring stand, iron ring, funnel, beaker, scoopula, hot plate, and sand. Step 1. First, weigh your beaker, and the sample that was given to you. Step 2. Pour the sample into your first beaker. Step 3. Now fill your beaker with about 25 mL of water, and stir. (The water should be turning a bluish green.) Step 4. Then, pour your mixture through the funnel into your second beaker ( this should keep out the "junk" that was accidently mixed in with the copper chloride.) Step 5. Next, take your beaker and put it on the hot plate. Wait a about 5-7 minutes to see what happens. Step 6. Our group only got this far, however, we would have waited for the water to evaporate.

The copper chloride would be the only thing left!

Hypothesis

The copper chloride was a pure compound unitl it mized with the junk making it a mixture. By evaoprating the junk turned to a liquid we were able to sort it back into a copper chloride pure compund.

I used the best technique to separate the copper chloride in this lab. One of them was separating the copper chloride from the "junk" by adding the two together with water, and then funneling the junk out, leaving the copper chloride with the water.