We were able to ignore the terms on the right side of the equation because we know mass is conserved within the reaction. Also the conservation of atoms tells us that the ratio of moles of copper chloride to aluminum is constant. So given the amount of copper chloride that reacted, we could find the amount of aluminum that reacted. If all the aluminum dissolved and the liquid was still blue, we would know that aluminum was the limiting reagent. We would also be able to calculate the mass of the original aluminum wire if we were able to measure the mass of the leftover copper. By finding the mass of the copper, we can find the mass of the amount of copper chloride that reacted then from the process from question 1, we can find the mass of the original aluminum wire. From the compound, CuCl2, we know that Cu is positively charged and Cl is negatively charged. When put in the water, the water allows the molecules to flow freely which puts it closer to the aluminum. Since aluminum has a greater positive charge than copper, the chloride, being a negative, moves to the aluminum and reacts with it creating aluminum chloride.
We were able to ignore the terms on the right side of the equation because we know mass is conserved within the reaction. Also the conservation of atoms tells us that the ratio of moles of copper chloride to aluminum is constant. So given the amount of copper chloride that reacted, we could find the amount of aluminum that reacted. If all the aluminum dissolved and the liquid was still blue, we would know that aluminum was the limiting reagent. We would also be able to calculate the mass of the original aluminum wire if we were able to measure the mass of the leftover copper. By finding the mass of the copper, we can find the mass of the amount of copper chloride that reacted then from the process from question 1, we can find the mass of the original aluminum wire.
Introduction The purpose of this lab was to determine which combinations of ions form water-insoluble precipitates. ... Materials 1 pair of safety goggles 1 plastic wash bottle with distilled water 1 wash bucket soap 5 test tubes water Chemicals: Set 1 0.1M barium nitrate, Ba(NO3)2 0.1M sodium sulfate, Na2SO4 0.1M aluminum sulfate, Al2(SO4)3 0.1M magnesium nitrate, Mg(NO3)2 0.1M ma...
In my next two high school years, I will be taking my elective classes that lean toward biology and Chemistry. Right now as a sophomore, I am taking Medical Chemistry, which helps me get an idea of what I will be doing in future. Next year, when I will be a junior, I have taken two classes, which are AP Chemistry and AP Chemistry Lab. ... I certainly want to take Human Physiology, Psychology, Anatomy, General Biology, and also some classes of Chemistry. ...
Aluminum however, best reacted to sodium hydroxide which I did not expect because aluminum, like magnesium, is also a metal. ... As results, magnesium had a reaction while aluminum did not. ... In the apparatus with aluminum, we added 27mg of aluminum foil and 20% sodium hydroxide into another Schlenk tube and collected the gas produced from that. When both reactions stopped and no more gas could be collected, we measured the amount of gas collected in the burette and recorded it into our lab notebook. ... Also, from our data, my lab partner and I were able to calculate the moles of hydrogen...
He started to read many books on chemistry, and became an omnivorous reader. ... In 1892 Davy, due to a lab explosion, was temporarily blinded. ... Michael then returned to England in 1815, and started going into the field of chemistry. ... Electromagnetic induction was found when Michael found that moving a magnet through a coil of a copper wire caused an electric current to flow into the wire. ... Michael ended up receiving a pension in 1835 and concluded his experimentation in chemistry, but he still lectured. ...
The more of the drug that comes into the body, the more the chemistry is suppressed. ... As the natural chemistry becomes more and more suppressed, survival mechanisms receive greater feeling of pleasure through the use of the drug. ... Identifying a Meth Lab and a Meth User There are several different signs to identify where a meth lab is as well as what a meth user looks like. ... The more of the drug that comes into the body, the more the chemistry is suppressed. ... Identifying a Meth Lab and a Meth User There are several different signs to identify where a meth lab is as well as w...
Purpose The purpose of this lab was to measure the heat of solution through heating the two solutions Na2S2O3 and NaC2H3O2 that we used for solutes. ... Insert a piece of wire through the hole, and bend each end to make 1.0cm loops. ... Gently moved the stirring Wire up and down inside the cup to disperse the heat. ... Changing temperature ∆t1= 23.5 ̊C - 13.5 ̊C = 10 ̊ ∆t2 = 24.5 ̊C - 14.5 ̊C = 10 ̊C Heat absorbed = MH2O x Cp1H2O x ∆t DH2O = 1.00 g/mL 75.0 mL x H2O = 75.0g Na2S2O3=75.0 g x 4.180 J g ̊C x 10.0 ̊C = 3.14 x 10^3 J 3.14 x 10^3 J/15.0 g =...
The following is a list of all the components that were ordered and inventoried: 1- Intel Celeron 1.8GHz Processor, 128K cache, 400 FSB, Socket 478 2- Corsair Value Select 256MB, PC 2700 DDR, 333MHz 1- Seagate 40GB EIDE Hard Drive 5400/2MB/12.5/ATA-100 1- Ultra Aluminum Fan Socket 478 up to P4 2.8GHz 1- Benq 56X CD ROM, Internal, IDE, Beige 1- Intel D875PBZLK Socket 478 Motherboard 1- EZ Media Corporate Mid-Tower Case with 350W power supply All of the items were accounted for. ... Extra standoffs were brought in by Ross and extra ...
This lab consisted of finding the density of 5 objects. The first object was the aluminum cube. ... The next object was an aluminum bar. Place the aluminum bar on the balance and weigh it. ... After you get these numbers multiply them to receive the volume of the aluminum bar. ...
However, wires that are used to conduct electricity may be subjected to highly variable temperatures. ... If a wire's ability to conduct electricity is related to its temperature, everything from your electric bill to the speed of your home computer could be adversely affected. It is the purpose of this project to investigate the relationship between temperature and the electrical conductivity of a copper and aluminum wire. ... It is the purpose of this investigation to show not only if temperature affects the ability of a wire to conduct electricity but also to measure how much the eff...
