5mL Volume of NaOH final 25mL 3mL Volume of NaOH total 25mL 2mL Moles of acetic

5ml volume of naoh final 25ml 3ml volume of naoh

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5mL Volume of NaOH, final 2.5mL 3mL Volume of NaOH, total 2.5mL 2mL Moles of acetic acid 4.4 mols 4.4 mols Moles of NaOH 2.5 mols 2 mols *Moles of acid (H + ) neutralized by Alka-Seltzer 1.9 mols 2.4 mols Moles acid neutralized per gram of Alka-Seltzer 0.5919 mols 0.7361 mols *mol H + neutralized = mol acetic acid – mol NaOH (see equation on p. 3) Initial color:
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3 ©2014, Carolina Biological Supply Company Evaluating the Efficacy of Antacids Dissolved tablet: Final color:
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4 ©2014, Carolina Biological Supply Company Evaluating the Efficacy of Antacids Data Table 2: Analysis of Tums Trial 1 Trial 2 Mass of acetic acid 5g 5g Density of acetic acid 1.00 g/mL Concentration of acetic acid 0.88 M Mass of Tums 1g 1g Volume of NaOH, initial 5mL 5mL Volume of NaOH, final 3.6mL 3.9mL Volume of NaOH, total 1.4mL 1.1mL Moles of acetic acid Moles of NaOH *Moles of acid (H + ) neutralized by Tums Moles acid neutralized per gram of Tums *mol H + neutralized = mol acetic acid – mol NaOH
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5 ©2014, Carolina Biological Supply Company Evaluating the Efficacy of Antacids Initial color: Dissolved tums: Final color:
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6 ©2014, Carolina Biological Supply Company
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7 ©2014, Carolina Biological Supply Company Evaluating the Efficacy of Antacids
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