paperThe Recycling of Copper Metal - Wilkes University：铜金属回收威尔克斯大学

The Recycling of Copper Metal

Name_______________________________Lab Section_

Data

Mass of flask+copper:___________________

Mass of empty flask:___________________

Mass of copper to be reacted:___________________

Mass of watch glass+filter paper+copper:___________________

Mass of watch glass+filter paper:___________________

Mass of copper recovered:___________________

Calculation of percent recovery of copper:mas s of copp er re covered

Reactions/Observations/Identification of Limiting ReagentProcedure 1:Oxidation of copper metal to copper(II)nitrate by nitric acid:

_is oxidized ___________is reduced

Procedu_r_e_2__:_P_r_e_c_ipitation of copper(II)from solution and neutralization of excess nitricacid:

Procedure 3:Decomposition of copper(II)hydroxide:

Procedure 4:Reaction of copper(II)oxide with sulfuric acid:

Procedure 5:Recovery of copper metal from copper(II) sulfate and decomposition of excesszinc metal:

Comments&Conclusions: