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Saturday, November 23, 2013

4.08 Lab Report

04.08 Percent Yield: Percent Yield Lab cut through and Rubric Before You Begin: You may either simulate and scatter this document into a word processing course of study of your survival of the fittest or print this page. 1.Create a info presentment board to record your data from the procedure. Be sure that the data control panel is neat and organized and that totally(a) measurements have the class meaningful figures and units. (3 points) Mass: Empty bang- 24. 35g Dish w/ NaHCO3- 37.06g Dish afterward reaction- 40.06g Dish after H2O evaporated- 31.52g? 2. Write the fill out equilibrise equation for the reaction that occurred in this lab. Hint: H2CO3 is non a final convergence of the double-replacement reaction; it breaks down (decomposes) direct into devil products. (3 points)??                            HCI + NaHCO3 ? H20 + CO2 + NaCI? 3. The NaHCO3 is the limiting reactant and the HCl is the exc ess reactant in this experiment. prepare the divinatory go bad of the NaCl product, showing all of your move in the office below. (5 points) 12.71 g of NaHCO3 divided by 84.01 g/mol ( hoagie cumulation of it) = 0.1513 moles 0.1513 moles of NaHCO3 being consumed = 0.
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1513 moles of NaCI produced. I then cover 0.1513 moles by molar mass of NaCl giving us the solvent of 8.8420 grams of NaCI which is the theoretical yield.? 4. What is the certain yield of NaCl in your experiment? evince your work below. (4 points) 31.52 g - 24.35 g = 7.17 g ( Mass of NaCI after all weewee evaporated)? 5. Determ ine the percent yield of NaCl in your experi! ment, showing all work neatly in the station below. (5 points) Actual yield/ theoretical yield = 7.17g/ 8.8420g = 81%? 6. If you had not heated the product long enough to remove all of the water, explain in detail how that would have specifically touched your calculated effective yield and percent yield. (5 points)If you want to run low a skillful essay, order it on our website: OrderCustomPaper.com

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