Then start adding 1 M NaOH dropwise from the syringe with constant swirling

Then start adding 1 m naoh dropwise from the syringe

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the NaOH. Then start adding 1 M NaOH dropwise from the syringe, with constant swirling, until a single drop of NaOH causes the solution to change to a yellow colour that persists for a few seconds after the addition, this is the equivalence point, and the end of the titration has been reached. Record the final volume of NaOH in the syringe in the table. Place the cup against the sheet of white paper and take a photograph of the final colour of the solution. Calculate the total volume of NaOH added to the solution in the table. Dispose of the solution in the cup. Thoroughly rinse the plastic cup with room temperature tap water at least 5 times. Dry the cup completely before proceeding. Repeat this whole process, but with the second tablet of Alka-Seltzer. Before proceeding to Activity 2, dispose of the solution in the large plastic cup, rinse the cup at least 5 times with room-temperature tap water, and dry the cup completely. Data/Results Data Table 1 Trial 1 Trial 2 Mass of acetic acid 5.0 g 5.1 g Density of acetic acid 1.00 g/mL Concentration of acetic acid 0.88 M Mass of Alka-Seltzer 3.1 g 3.0 g Volume of NaOH, initial 5.0 ml 5.0 ml Volume of NaOH, final 3.0 ml 2.8 ml Volume of NaOH, total 2.0 ml 2.2 ml Moles of acetic acid 0.083 0.085 Moles of NaOH 0.002 0.002 Moles of NaHCO 3 0.036 0.036 Moles NaHCO 3 / g Alka- Seltzer 0.012 0.012 3
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Bogen’s Universal Indicator Bogen’s Universal Indicator + Alka-Seltzer Tablet Activity 2 (Analysis of Tums) Method Using the exact same method as activity 1, but instead of the Alka-Seltzer tablet, use the Tums tablet. Data/Results Data Table 2 Trial 1 Trial 2 Mass of acetic acid 5.0 g 4.9 g Density of acetic acid 1.00 g/mL Concentration of acetic acid 0.88 M Mass of Tums 1.8 g 2.0 g Volume of NaOH, initial 5.3 ml 4.8 ml Volume of NaOH, final 3.1 ml 2.7 ml Volume of NaOH, total 2.2 ml 2.1 ml Moles of acetic acid 0.083 0.082 Moles of NaOH 0.002 0.002 Moles of CaCO 3 0.018 0.020 Moles CaCO 3 / g Tums 0.023 0.010 4
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Bogen’s Universal Indicator + Tums Tablet Activity 3 (Analysis of Milk of Magnesia) Method Rinse the 5 mL syringe thoroughly with tap water. Draw water into the syringe and expel the water at least 5 times. Then, place the large plastic cup on the weigh balance and tare the balance. Weigh 2.5 g of milk of magnesia into the cup and record the exact mass in Data Table 3.
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