Electroplating

Publish in

Documents

19 views

Please download to get full document.

View again

of 13
All materials on our website are shared by users. If you have any questions about copyright issues, please report us to resolve them. We are always happy to assist you.
Share
Description
Electroplating. By Eric Urban. BIG QUESTION. Which metals zinc plate the best using electricity?. Hypothesis. I think all my metals will zinc plate the same but some will take longer because in my research I found that different metals take different amounts of time. Interesting Facts.
Transcript
Electroplating By Eric Urban BIG QUESTION Which metals zinc plate the best using electricity? Hypothesis
  • I think all my metals will zinc plate the same but some will take longer because in my research I found that different metals take different amounts of time.
  • Interesting Facts
  • Some plugs are electroplated with gold.
  • It takes an hour to plate with copper.
  • Electroplating is used in many metal-working companies.
  • Pennies have zinc on the inside.
  • The zinc on the inside of a penny is copper-plated then stamped.
  • ExperimentFor The Next 3 Slides Materials
  • Plastic Container
  • Vinegar
  • Water
  • AC Adaptor
  • Alligator clips
  • Zinc Anode
  • Copper Pipe
  • Iron Pipe
  • Aluminum Strip
  • Steel Razor-blade
  • Brass Plate
  • Scale
  • Wire Cutters
  • Stopwatch
  •  Procedure
  • Use wire cutters to cut the end off an AC adaptor (Not the side you plug in to a wall). Peal the wires apart and strip the ends. The wire with the white lines on it is positive.
  • Connect the alligator clips to the positive and negative wires.
  • Mix ½ cup of vinegar and ½ cup of water in the plastic container.
  • Weigh the zinc anode and the copper pipe and record the weight for each.
  • Connect the zinc anode to the positive alligator clip. Connect the copper pipe to the negative clip.
  • Place both metals into opposite sides of the plastic container. Be sure not to let them touch each other. Record the time.
  • After 1 hour, remove the metals from the container and disconnect from the alligator clips.
  • Weigh the zinc anode and the copper pipe. Record the weight for each.
  • Repeat steps 4-9 using the aluminum strip instead of the copper.
  • Repeat steps 4-9 using the brass plate instead of the copper.
  • Repeat steps 4-9 using the steel razor-blade instead of the copper.
  • Repeat steps 4-9 using the iron pipe instead of the copper.
  • Controls / Vairiables Controls Variables
  • The same hunk of zinc was used through the experiment.
  • I used one hour for each metal.
  • I plated different metals.
  • Observations
  • The zinc turned black.
  • The water heated up.
  • The water turned grey.
  • Gasses could be seen coming from the solution.
  • Data Analysis of Data
  • The weight didn't change for any metals throughout the experiment, but the amount of bubbles given off was different for each metal.
  • The copper had a lot of bubbles. The aluminum had many bubbles. The brass didn't have many bubbles. The steel had very many bubbles. The iron had the most bubbles.
  • The experiment tested my hypothesis.
  • I know because some metals plated more or less than others in an hour.
  • Conclusion
  • My hypothesis was some-what correct. I couldn't determine which metals plated more because they all weighed the same before and after the experiment. I determined which metals plated better by looking at the amount of bubbles given off during the experiment. The faster the bubbles were produced, the plating I saw on the metal. Based on this I determined that iron plated the best.
  • I would change the metals because I want to know how other metals plate.
  • These are some questions that I have. Why did the zinc turn black? Why didn't the weight change?
  • Reffrences
  • http://www.artisanplating.com/articles/platinghistory.html (accessed September 20, 2009) “A Short History of Electroplating.”
  • http://www.finishing.com/faqs/howworks.html (accessed September 20, 2009) “Electroplating – How It Works”
  • http://www.fofweb.com/activelink2.asp?ItemID=WE40&SID=5&iPin=E&Singxp0169&SingleRecord=True (accessed September 21 ,2009) “Electroplating.” Historical Inventions on File. Science Online. Facts on File, Inc.
  • http://www.fofweb.com/activelink2.asp?ItemID=WE40&SID=5&iPin=SEOF95&SingleRecord=True (accessed September 21 ,2009) “Brugnatelli’s Electroplating: Luigi Brugnatelli.” Landmark Science Inventions on File. Science Online. Facts on File, Inc.
  • http://en.wikipedia.org/wiki/Plating (accessed September 20, 2009) “Plating”
  • Previous Document

    RPKPS KEHUMASAN 2017.doc

    Next Document

    Emerging Techno

    We Need Your Support
    Thank you for visiting our website and your interest in our free products and services. We are nonprofit website to share and download documents. To the running of this website, we need your help to support us.

    Thanks to everyone for your continued support.

    No, Thanks