Part G

The final reation in Part G involves the replacement of copper with zinc. Zinc reacts with the cupric sulfate solution forming zinc sulfate solution and copper. This was a single replacement reaction.

Zn + CuSO4 -> ZnSO4 + Cu

Before starting the reaction, we weighed our filter paper to subtract from our final weight.

We added 2 grams of zinc to the cupric sulfate...

...and waited and stirred and waited and stirred.

We ended up with an ugly gray solution of zinc sulfate and copper at the bottom.

Then very carefully (striving for accuracy) we picked out the remaining zing with plastic tweezers and washed the remains of copper back into the beaker.

Finally, we ended up with our original copper and put the solution through another vacume to isolate the solid copper.