Hickman_Lab12.docx - Weena Hickman Lab 12 Evaluating the Efficacy of Antacids Lab Partners N\/A Purpose The objective of this experiment is to determine

Hickman_Lab12.docx - Weena Hickman Lab 12 Evaluating the...

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Weena Hickman April 26, 2020 Lab 12: Evaluating the Efficacy of Antacids Lab Partners: N/A
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Purpose: The objective of this experiment is to determine the neutralization capacity of antacids: Alka-Seltzer, Tums, and Milk of Magnesia. Using the Le Chatelier’s principle, the equivalence point of the above antacids will be observed and compared for the greatest efficacy antacid. Pre Lab Questions: 1.A common side effect of some antacids is feeling ‘gassy.’ Explain why. 2 . 2.Write the balanced net ionic equation for each of the three antacid reactions.
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CH ¿ COO ¿ 3 ¿ Ca ¿ CaCO 3 + 2 CH 3 COOH ( aq ) ¿ + H 2 O ( l ) CH ¿ COO ¿ 3 ¿ Mg ¿ Mg ( OH ) 2 ( aq ) + 2 CH 3 COOH ( aq ) ¿ Data & Observations: Through a series of 3 differing experiences with two trials each, the efficacy of each antacid was calculated. Each antacid was exposed to either a NaOH solution and/or HCl in representation of stomach acid. Data : Trial 1 Trial 2
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After Table Dissolved 0 NaOH Used After Table Dissolved 0 NaOH Used Trial 1 Trial 2
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After Tablet Dissolved After Tablet Dissolved After NaOH After NaOH
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Trial 1 Trial 2 After Acetic Acid After Acetic Acid Observations : During this experiment, it was observed that the efficacy of antacids differs amongst Alka-Seltzer, Tums and Milk of Magnesia with Tums being the best performing antacid.
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Calculations Data Table 1: To obtain the Moles of acetic acid: o Mass Density 1000 = 5.17 g 1.00 g /
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