We recently did the copper cycle lab, and my lab partner and I recovered 95 % of the mass of the initial copper. Now I understand the entire lab, no need to explain how to do it. I also understand it is an experiment designed to illustrate the law of conservation of mass. What I am a little stuck on is what could possibly be my sources of error for why the other 5 % did not show up when it was done. Of course everything was not done perfectly and there were human errors involved I'm sure, but those are cop-outs when writing my lab report (mistakes are not an excusable source of error). Any ideas on what the possible sources of error could have been?
I was thinking perhaps some of the following (things that are out of my control):
The concentration of the acids used, H2SO4, HCL, etc. ( they were pre-made solutions)
Any help would appreciated.
Thanks, Jeff
I was thinking perhaps some of the following (things that are out of my control):
The concentration of the acids used, H2SO4, HCL, etc. ( they were pre-made solutions)
Any help would appreciated.
Thanks, Jeff