Chenistry

The aim of this audition is to investigate the immersion of the react finish is a factor that affects the per centum government issue of the return. The hypothesis of the investigate is the higher submerging of the react firmness the lower the consider pass on of the point of intersection. By doing the reaction of diametrical denseness of the Cu (NO3)2 root words react with the metal Mg. All the result shows that the higher immersion of the Cu (NO3)2 solution the lower the pct yield of the ware Cu. So there is no kin amidst assimilation 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 second-rate pack of Cu in the 0.75M reaction is 0.27g, and the average chain reactor of Cu in the 1.00M reaction is 0.26g. For the graph the result of the product Cu, the preoccupation 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 assorted 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 apiece trial. The tim! e of the reaction react is the same. So, the Mg react with the dissimilar concentration Cu (NO3)2 result produce the same shew sense of Cu and Mg (NO3)2. There was no relationship between the independent and dependent variable. There are sources of flaw 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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