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Weena HickmanApril 26, 2020Lab 12: Evaluating the Efficacy of Antacids Lab Partners: N/A
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.
CH¿COO¿3¿Ca¿CaCO3+2CH3COOH(aq)→¿+H2O(l)CH¿COO¿3¿Mg¿Mg(OH)2(aq)+2CH3COOH(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 1Trial 2
After Tablet Dissolved After Tablet DissolvedAfter NaOHAfter NaOH
Trial 1Trial 2After Acetic AcidAfter Acetic AcidObservations: 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.
CalculationsData Table 1:To obtain the Moles of acetic acid:oMassDensity1000= 5.17g1.00g/