The density of Aluminium is 2.702 g/cc.So,mass of 1 cm 3 Al is 2.7 g.Now,one rol
ID: 700511 • Letter: T
Question
The density of Aluminium is 2.702 g/cc.So,mass of 1 cm3 Al is 2.7 g.Now,one roll of Aluminium foil has a width of24 inch which is equal to 60.96 cm,length of 500 ft which is equal to 15240 cm and a thickness of 0.96 mil which is equal to 0.00244 cm.So,the volume of the aluminium foil is (60.96 ×15240×0.00244) cm3 or cc which is equal to 2266.83 cm3 or cc.
mass of the Al in the foil = (2.702×2266.83) g = 6125 g.So,number of moles of Aluminium in 6125 g = 6125/27=227.(molar mass of Al=27 g).Again,1 mole of Aluminium contains Avogrado's number of Al atom.(Avogrado's No.=6.023×1023 ).Therefore, 227 moles Aluminium contains (6.023×1023×227)=1.37×1026 Aluminium atoms.The cost of 1.37×1026 Aluminium atoms is $39.48.So,the cost of a single Aluminuim atom is $(39.48/1.37×1026)=$2.9×10-26
Explanation / Answer
Writing Assignment #3 Read the scenario below and then write an essay (100- 500words) in which you answer the question(s) posed at the end of the scenario. Be sure to provide an explanation of your answer(s). Explain any chemistry and calculations used to reach your answer(s). You will want to review the Writing Assignment Style Guide found in Topic 2 before beginning your assignment. Then use your favorite word processing software to prepare your essay. Upload your essay using the link provided for this assignment in Topic 7 The problem that follows was given by an instructor to his introductory chemistry class. He asked them to calculate the cost of a single aluminum atom in a roll of aluminum foil that he had recently purchased. The information that he provided the class was the followin 1roll of Reynolds Wrap Heavy Duty Aluminum foil 24.0 in wide, 500.0 ft long and 0.96mil thick The cost $39.48 That is all the information the instructor gave the class. Two students, became quite upset with the problem they were assigned and withdrew from the course, several students went to complain to the instructor, and others to the Department Chair. They all insisted that the problem was impossible to solve, but you know better. Describe how you would solve the problem your answer. If you rely on calculations in determining your Please be mindful of your spelling, punctuation, and your assignment using the provided link. Do not be afraid to do some web searching to help with answer you must describe or include them in your essay sentence structure as you write your response. Upload
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