Copper Corrosion Essay Example for Free

Copper Corrosion EssayIn this experiment, I go forth be scrutiny the wearing away rate of crap telegram after leaving them in different unstables with different pH levels. By doing so I bequeath be able to determine which pH level corrodes copper the fastest. I entrust conduct this experiment by pouring 250mL of different liquids with different pH levels in instills, followed by an cast-iron take apart placed into the cup. A stopwatch will be timing how retentive it takes the iron strip to fully corrode. The cups will be placed in the same environment right on next to each(prenominal)(prenominal) other in order for the cups to be in the same temperature. All of the cups will be the same type of cup to make sure the cups wont have a role determining the results.There will be three trials for each type of liquid. This will image the most accurate results. The pH level will be tested with a strip of litmus test paper to determine the official pH level of the liquid. The stopwatch will start as soon as all of the copper wire are placed into the cups. I will be ceremonial the cups, taking note of any qualitative data I see. When I see that the iron strip in cardinal of the cups is fully covered in rust, I will record the sequence that was on my stopwatch. To analyze the data I will first find the average pH level for each of the liquids. Then I will average the total time it took for the copper wire to corrode. This data will be in hours. To see if there was any correlation between the in reliant variable and dependent variable, I will create a graph with the time it took the copper wire to corrode as the y-axis and the pH level as the x-axis.Hypothesis If the pH level is more acidic, than the iron strip will corrode at a faster rate. Independent variable quantitypH level of liquidsDependent Variable rate of corrosion of iron stripControl pH of 7 (Tap water)Constants Same amount of liquid in each cup (50mL) Same sized copper wire (5x3/4x3/64 ) Same type of cup Cups placed in same temperature Cups placed in same environmentMaterials 12 copper wire 4 see by cups 150mL of vinegar 150mL of bleach 150mL of tap water 150mL of hydrogen peroxide litmus paper Stop watch Sharpie Paper towelProcedure1. On the see through cups, label which liquid will be poured into them 2. Pour 50mL of the liquids into their corresponding cups. 3. Put litmus paper into each liquid to get official pH level. Record pH level. 4. Place iron strip into liquid, do sure it is completely surrounded by liquid 5. Start stopwatch as soon as the copper wire are placed into cup. 6. Observe the copper wire. Record down the time whenever one of the copper wire is fully covered in corrosion. 7. Once all the times are enter empty the cups and rinse them out with water. 8. Repeat steps 2-7 two more times.9. Find the average time it took to corrode the iron strip.AbstractI will be testing how pH levels of liquids affect the corrosion rate of an iron strip. The i ndependent variable for this experiment is the pH level of the liquid. I will be using four different liquids, each having a different pH level. I will be using tap water, which is neutral salt water, which is generally slightly staple fiber bleach, a very basic liquid and vinegar, a very acidic liquid. The tap water will serve as my control. Having a variety of pH levels helps to give me a better perspective on how much of a cipher pH level is on corrosion rate. The dependent variable will be the time it takes the iron strip to fully corrode. The unit for this measurement will be minutes.