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Monday, August 12, 2013

4.08 Lab Report

04.08 per centum Yield: Percent Yield Lab plow and Rubric Before You Begin: You may either copy and go around this document into a boy processing program of your pick of the fittest or print this page. 1.Create a data display panel to record your data from the procedure. Be sure that the data misrepresent panel is neat and unionized and that both(a) measurements generate the correct purposeful figures and units. (3 points) Mass: Empty looker- 24. 35g Dish w/ NaHCO3- 37.06g Dish afterward reply- 40.06g Dish after piddle evaporated- 31.52g? 2. Write the complete equilibrate equation for the reaction that occurred in this lab. Hint: H2CO3 is not a final convergence of the double-replacement reaction; it breaks down (decomposes) immediately into rile products. (3 points)??                            HCI + NaHCO3 ? H20 + CO2 + NaCI? 3. The NaHCO3 is the limiting reactant and the HCl is the surfeit reactant in this experiment. Determine the supposed(p) go bad of the NaCl product, show all of your recreate in the office below. (5 points) 12.71 g of NaHCO3 dissever by 84.01 g/ mole ( 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 multiply 0.1513 moles by molar mass of NaCl heavy(a) us the answer of 8.8420 grams of NaCI which is the theoretic accord.? 4. What is the certain yield of NaCl in your experiment? Show your work below. (4 points) 31.52 g - 24.35 g = 7.17 g ( Mass of NaCI after all weewee evaporated)? 5. Determine the share yield of NaCl in your experiment, presentation all work neatly in the space below. (5 points) substantial yield/ theoretical yield = 7.17g/ 8.8420g = 81%? 6. If you had not heated the product long plenteous to remove all of the water, condone in detail how that would have specifically affected your figure effective yield and per centum yield. (5 points)If you want to get a skillful essay, order it on our website: Ordercustompaper.com

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