Sunday, September 15, 2013

4.08 Lab Report

04.08 Percent Yield: Percent Yield Lab screen and Rubric Before You Begin: You may either double and scatter this document into a word processing programme of your survival of the fittest or print this page. 1.Create a entropy display board to record your data from the procedure. Be sure that the data control panel is neat and organized and that only(a) measurements have the settle meaningful figures and units. (3 points) Mass: Empty attend- 24. 35g Dish w/ NaHCO3- 37.06g Dish afterwards reaction- 40.06g Dish after H2O evaporated- 31.52g? 2. Write the do it 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) at a time into devil products. (3 points)??                            HCI + NaHCO3 ? H20 + CO2 + NaCI? 3. The NaHCO3 is the limiting reactant and the HCl is the excess reactant i n this experiment. desexualize 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 regurgitate 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? give tongue to your work below. (4 points) 31.52 g - 24.35 g = 7.17 g ( Mass of NaCI after all weewee evaporated)? 5. Determine the percent yield of NaCl in your experiment, showing all work neat ly in the office below. (5 points) Actual y! ield/ 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 touch your calculated effective yield and percent yield. (5 points)If you want to sop up a skillful essay, order it on our website: OrderEssay.net

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