Lab Report

I. Experiment 6: limit and unneeded Reagents Date Performed: 25 September 2012 Date Submitted: 02 October 2012 No Partner II. Purpose: The intend of this try out is to induce the limiting reagent. The limiting reagent results when non enough of the reactants atomic number 18 present in the exact amounts calculated. The concept of stoichiometry is employmentd to find the reactants and products. The flow, a strong product, lead be calculated. One probeament learn the use of tools, such as a centrifuge and desiccator. The centrifuge will be used to separate the precipitate from the solution. This lab practices stoichiometry, and explains how the interaction of reactants can produce a product. III. turn: Dillon, Stephanie. Limiting and Excess Reagents. Laboratory Manual. Pearson Publishing, 2012, pp. 87-100. IV. selective information and Results: 2Cu(NO3)2(aq) + 4KI(aq) 2CuI(s)? + I2(aq) + 4KNO3(aq) Table 1: Class Data | Volume o f Cu(NO3)2 (0.50 M)| Volume of KI (0.50 M)| Masses of precipitates in rivulet tubes| Cu(NO3)2 Test| KI Test| A| 1.0 mL1.0 mL1.0 mL1.0 mL| 6.0 mL6.0 mL6.0 mL6.0 mL| 0.088 g0.112 g0.0615 g0.0895 g| ++++| ----| B| 2.0 mL2.0 mL2.0 mL2.0 mL| 5.0 mL5.0 mL5.0 mL5.0 mL| 0.254 g0.225 g0.227 g0.241 g| ++++| ++++| C| 3.0 mL3.0 mL3.

0 mL3.0 mL| 4.0 mL4.0 mL4.0 mL4.0 mL| 0.287 g0.2875 g0.2556 g0.300 g| ----| ++++| D| 4.0 mL4.0 mL4.0 mL4.0 mL| 3.0 mL3.0 mL3.0 mL3.0 mL| 0.2495 g0.145 g0.2060 g0.2495 g| ----| ++++| E| 5.0 mL5.0 mL5.0 mL5.0 mL| 2.0 mL2.0 mL2.0 mL2.0 mL| 0.123 g0.128 g0.1105 g0.081 g| ----| ++++| F| 6.0 mL6.0 mL6.0 mL6.0 mL| 1.0 mL1.0 mL1.0 mL1.0 mL| 0.0405 g0.0185 g0.0255 g 0.027 g| ----| ++++| Table 2: Class Data ! Table | Masses of ppt. in test tubes| number moles of CuI| Average moles of Cu(NO3)2| Average moles of KI| Theoretical moles of CuI found on Cu(NO3)2| Theoretical moles of CuI based on KI| Limiting reagent| % misconduct| A| 0.088 g0.112 g0.0615 g0.0895...If you want to get a well(p) essay, erect it on our website: OrderEssay.net

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