Copper Reactions - 1330 Words

------------------------------------------------- ABSTRACT ------------------------------------------------- The copper reaction experiment was demonstrated by adding the reagents like 16M HNO3, Distilled water, 6M NaOH, 6M H2SO4, Acetone, Zinc metal and Methanol into the beaker with the copper wire. The experiment was also demonstrated to observe how copper reacts while different reagents were being added. It was also demonstrated to practice the common laboratory techniques such as methods of separation involving filtration, sedimentation, decantation and extraction. While different reagents were added to the copper wire, different reactions were also observed and tallied until the recovered copper was weighed and the percentage†¦show more content†¦The solution was then filtrated and the black residue remained on the filter paper as the solution was being filtrated. Cu(OH)2 ----∆---gt; CuO After the filtration, the black precipitate (CuO) was dissolved by a 15ml 6M H2SO4 (Sulfuric acid), a blue mixture was formed. After adding the Sulfuric acid, a 2g zinc metal was added to the mixture and was stirred, when stirring, tiny bubbles started to appear and the change in color from blue to brown color happened. Also, the zinc metal was dissolved but not totally that made up the tiny solids. When the tiny solids were cooled, it was washed and decanted twice by a 10ml Methanol and also a 10ml Acetone. After washing and decanting the recovered copper, it was again heated until the recovered copper was totally dry and weighed again using the analytical balance. After that, the percentage yield was calculated. 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