Chenistry

The aim of this audition is to investigate the immersion of the fight back issue is a factor that affects the per centum government issue of the return. The hypothesis of the experiment is the higher submerging of the react firmness the lower the function wages of the growth. By doing the reaction of diametrical denseness of the Cu (NO3)2 dissolvers react with the metal Mg. All the result shows that the higher ducking of the Cu (NO3)2 solution the lower the portion yield of the return Cu. So there is no consanguinity amidst ingress of the react solution and percent yield of product. For the result, the norm mount of the product Cu in 0.25M solution reaction is 0.27g. The add up ken of Cu in 0.5M reaction is 0.28g. The middling array of Cu in the 0.75M reaction is 0.27g, and the average aggregate of Cu in the 1.00M reaction is 0.26g. For the graph the result of the product Cu, the constriction of the react solution Cu (NO3)2 increase, the mass of the product Cu decrease. By calculate the percent yield of assorted concentration Cu (NO3)2 solutions react with Mg. The average percent yield of the incompatible concentration solution 0.25M Cu (NO3)2 and 0.75M Cu (NO3)2 are 103.85 %. The average percent yield of 0.50M Cu (NO3)2 is 107.69%. The average percent yield of 1.00M Cu (NO3)2 is 100 %.

The concentration of the solution Cu (NO3)2 increase, the percent yield of the product Cu decrease. There was not a relationship between variable, because the reactants is fixed before they are react. The mass of the metal Mg is 0.1g in severally trial, and the volume of the solution 0.25M Cu (NO3)2, 0.5M Cu (NO3)2, 0.75M Cu (NO3)2 and 1.00M Cu (NO3 )2 is 20ml in to each one trial. The time o! f the reaction react is the same. So, the Mg react with the disparate concentration Cu (NO3)2 result produce the same earn sense of Cu and Mg (NO3)2. There was no relationship between the independent and dependent variable. There are sources of misplay will affect the accuracy of the result. The precipitate...If you want to get a broad essay, order it on our website: OrderEssay.net

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