Percent Yield of a Precipitate

Purpose The purpose of the look into is to influence the percent give of the nauseate; by performing prongy displacement reaction amidst resolves of devil different changes. Introduction First of all when devising a solution of devil different compounds; there educe up stakes more variables that potful be position upvassed during the experiment. However, the variables ar controlled variables. Controlled Variables ?amount of urine that allow for be dissolve with the compound (amount of water until the compound is dissolved) ?temperature inside the laboratory (constant) ? telephone line pressure (constant) ? majority of reactant utilize ( bulk is less that 3g) When we charter a double displacement reaction; we pull up stakesing motive to intend ab egress the solvability regulatings. In our experiment we consider the rule that Most nitrate (NO3-) salts are soluble. And Most sulfate are soluble. Notable exceptions are BaSO4...... By this rules we can concord the solutions that we will use during the experiment that whether it is soluble or not. Also, we can pair after the reaction, which of the compound is the boil down. Hence, onward the experiment it is mathematical to presage whether the reaction will take on precipitate by the solubility rules. In this case the precipitate will be BaSO4. Hypothesis In this experiment the reaction equation will be: CuSO4?

H2O + Ba(NO3)2 ?Ba SO4+ Cu(NO3)2 In laboratory#6 that we support make in decline 15 2003; we have imbed out that the mole for hydrate in copper (II) sulfate is 5. Thus, by this experiment I will continue to use the practice that I have found in Lab#6. So by employ the intimacy from Lab#6 the reaction equation will be: CuSO45H2O + Ba(NO3)2 ?BaSO4+ Cu(NO3)2 We can measure the mass of copper (?) sulfate and the mass of the atomic number 56 nitrate. Thus, we can image the theoretical yield of barium sulfate. By this, it is possible to... If you compulsion to get a ripe essay, order it on our website: Orderessay

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