The Effect of pH Level of a Liquid on the Rate of Corrosion of Copper wire In this experiment‚ I will be testing the corrosion rate of copper wire after leaving them in different liquids with different pH levels. By doing so I will be able to determine which pH level corrodes copper the fastest. I will conduct this experiment by pouring 250mL of different liquids with different pH levels in cups‚ followed by an iron strip placed into the cup. A stopwatch will be timing how long it takes the iron
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sulphides in contact with air and water produces sulphuric acid which reduces the pH of water. The result of these reactions is increase in the solubility of heavy metals and consequently pollution of water resources. The Sarcheshmeh copper mine is one of the largest porphyry copper mines in the world which is located in south-eastern Iran. Chemical analysis of over than 600 water samples taken from streams and springs in the mining region and surrounding area of pit showed extensive changes in water quality
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Equations: 1) Cu + 4H+(aq) + 2NO3-(aq) Cu2+ + 2NO2 + 2H2O 2) Cu2+(aq) + 2-OH(aq) Cu(OH)2 3) Cu(OH)2 + heat CuO + H2O 4) CuO + H2SO4 Cu2+(aq) + SO42-(aq) + H2O 5) Cu2+(aq) + Zn Cu + Zn2+(aq) Stage 1- Dissolution of Copper Mass of vial & copper = 3.537g Mass of vial = 2.505g Mass of Copper = 1.032g Moles of copper = mass (g) ÷ (63.5g/mol) = 0.0162 mol (3s.f) Copper description: Initially‚ the copper was a solid that was
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Research question/Aim Extract copper from copper oxide by reduction using butane gas Hypothesis The butane gas will reduce the copper oxide and leave behind pure copper. This will allow us to find the empirical formula of the copper oxide as well as the masses of oxygen and copper Variables Dependant variable The dependant variable will be the reduction of the copper oxide which will be calculated at different temperatures. Independent variable The independent variable here
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In the short story Penny in the Dust by Ernest Buckler‚ the author uses the method of presenting Peter’s view on this father and his father’s view on him by contrasting and comparing. By doing so‚ it shows that miscommunication will cause problems between people unless they open up to each other. Peter is portrayed as an imaginative child but at the same time has a very mature view on things especially towards his father. Being a child‚ he looks up to his father and respects and tries to understand
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Percent Copper and Formula of a Copper Compound Sofia Economides Date Preformed: 3/19/2012 Date Submitted: 3/26/2012 Lab Partners: Anita Smith‚ Taylor Bell‚ Derek Bourgeois 1. Purpose a. To determine the percent of copper and the formula weight of a copper compound. 2. Introduction a. Magnesium is a very active metal which can reduce copper (II) ions in a weight sample of a compound to metallic copper. The reduction of copper ions in a compound to a copper metal
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rid of the penny because they’re worthless. Removing the penny won’t hurt charities‚ American History will not be forgotten and making pennies is a waste of time. You can’t use pennies for a lot of things nowadays. The whole point of having the penny is to spend it‚ however‚ the penny itself can’t be spent. Pennies cost more then what they are worth. Yearly it costs the government 134 million dollars to produce 80 million dollars worth of pennies. The U.S had a half penny and when we
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2014 Atkins A Penny for Thought The great debate of the penny is an intriguing and quite controversial one. While some may feel the penny is worthless and not needed‚ others argue passionately that the penny is worthy of great praise and deserves to be kept around. It is not only a great American tradition with great sentiment but it is also functional and extremely convenient. Along with unequivocal opinions‚ statistics are also available to prove how practical and favorable pennies really are.
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the production of pennies‚ because the pennies have become useless in this economy today‚ makers of pennies could be doing more useful jobs‚ and the bill would simply decrease the use of the penny. The time has come to abolish the outdated‚ almost worthless‚ bothersome and wasteful penny. We always have those couple pesky pennies that’s we have to deal with day by day because we can’t get rid of them. Now a day you can’t buy anything with a penny or even a handful of pennies like you use to be
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Coursework 4 Copper Name of student: Alfiya Ospanova Tutorial group: G Copper is one of the earliest elements explored by humanity. Due to the special red shade it was easy to find in ancient times. The metal was named according to place where it was found‚ the Cyprus islands. Copper produced in massive stars and spread in the world as minerals like chalcocite and chalcopyrite (sulfide of copper)‚ azurite and malachite (carbonate of copper)‚ cuprite (oxide of copper). The atomic
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