II AM Lab data percent yield carbon dioxide.pdf Name Sect Percent Yield of Carbon Dioxide To predict the amount of carbon dioxide gas that should be produced in a Purpose: chemical reaction. Then calculate the amount of carbon dioxide actually produced and determine the percent yield. The reaction is represented in the equation below: CH,COOH + NaHCO, → NaCH,C00 + H20 + CO2 Materials: sodium bicarbonate (aka baking soda), acetic acid solution (aka vinegar), Erlenmeyer flasks, balance .Procedure: 1. Measure and record the mass of a 250-mL Erlenmeyer flask. Label it as flask A. 2. Add approximately 7.5 g of sodium bicarbonate to flask A. 3. Measure and record the mass of a second 250-ml Erlenmeyer flask. Call it flask B. 4. Add approximately 75 g of acetic acid solution to flask B. 5. Slowly add acetic acid to flask A until the reaction has stopped. Do not add all of the vinegar; just enough to complete the reaction. 6. After the reaction has stopped, measure and record the masses of both flasks. Actual Fietd Theoretiaal Feld Fercent Fietd - (Actrat YiGEd-Theoreticat Ftetd) Data: Data Units Mass of beaker A (empty) 76.56 2 Mass of Bealker A + Baking Soda 3 Mass of Baking Soda (2-1) 4. Mass of beaker B (empty) 131.62 Mass of Beaker B+ Vinegar 235.42 9. Mass of Beaker B+Vinegar after reaction 331.25 Mass of Vinegar added to Beaker A (5-6) 95.83 Mass of Bealker A after reaction 方 90'01 103.79 6. Mass of product after the reaction (8-1) Mass of Baking Soda + Vinegar (3+7) Mass of Carbon Dioxide lost (10-9) 4. 28 tv MacBook Pro LE Periods Discussion Questions: What are the reactants in this experiment? Which are the products in this experiment? 3, Identify the limiting reactanti 4. Identify the excess reactant: Using stoichiometry (ie. mass of Baking Soda) caleulate the theoretical yield of carbon dioxide: Show Work: m. 6.6 N Hc0 44.014107 » 3.65g What is the percent yield? Show Work: What is the percent error? Show Work: 8. Matter cannot be created nor destroyed during a reaction. Does this apply to this lab? (Yes or No) Explain your answer: Why NoT l60% yield? 4. étv 28 MacBook Pro