Copper Coil |
This lab took our class about 3 days to complete. Day number one, we got our materials ready and weighed out. We then took the silver nitrate (AgNO3) and mixed in distilled water until the AgNO3 had dissolved. After that, we placed the copper coil in the test tube as well and let it set until day two. Finally, we went back to class and used math with the balanced equation 2AgNO3 + Cu ----> Cu(NO3)2 + 2Ag and we formed predictions for how much silver should be formed and how much copper became Cu(NO3)2 in the reaction. Day number two rolled around and we observed a sort of crystal looking structure that had formed around the copper wire. We gently shook the test tube to dislodge this formation like the instructions requested. Then we set up a funnel with filter paper with a waste beaker underneath and we lifted the wire from the solution and dumped the remaining solution & silver mixture into the filter paper. Once it had drained we set both the wire & filter paper with the silver under the fume hood to dry. Day three and this was just to finish up the lab. We weighed the copper coil and recorded it's mass and did the same with the silver and filter paper. Now we had all the measurements needed to make out figures of how much Ag was formed & how much Cu was lost.
We used alot of moles in this lab. There was lots of converting grams to moles and back again. |
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