Antacid Report

Topics: Hydrochloric acid, PH, Antacid Pages: 5 (1470 words) Published: November 22, 2012
Testing the Effectiveness of Commercial based Antacids
The purpose of this lab is to determine, by testing several dissolved commercial antacid solutions, which can best neutralize acid and is the most effective for heartburn. Hypothesis:
If all three different types of Antacid were tested and neutralized with the Hydrochloric acid, then the one that would be the most effective antacid would be the TUM’s Ultra Strength Calcium because it is larger and because it is Ultra Strength, it should be more effective. Materials

Compliment Extra Strength Antacid Tablet
Life Ultra Strength Calcium Antacid Tablet
Thymol Blue
Mortar and Pestle
pH probe
Retort Stand
Hydrochloric Acid(HCl)
Distilled Water
pH 4 solution
1.All the materials were gathered/assembled.
2.The clamp was secured onto the Retort stand,
3.The pH probe was then attached to the clamp and secured tightly 4.With the pH 4 solution, the pH probe was calibrated properly according to SNC2D0 standards 5.One antacid tablet was weighed with the scale and the result was recorded 6.Step 5 was repeated for the other two antacid tablet brands used. 7.Once each tablet was weighed, they were then crushed and grinded with the mortar and pestle and each put in their respective beaker 8.25 Millilitres of distilled water was then added to each beaker and stirred gentle until a milky solution was made 9.One solution of the antacid’s was taken to the Tort stand and the pH probe was lowered into the solution 10.4-6 Drops of Thymol Blue was put into the solution with the pipette, or as many drops was needed to indicate a color change. 11.As indicated on the pH probe, the pH of the solution was recorded down 12.Using the pipette, Hydrochloric Acid was gathered; inside the pipette 13.Individual drops of the Hydrochloric acid were then added, each drop added was recorded on the table 14.At the same time as the drops added, the solution was continually stirred with the stirrer 15.Drops of HCl were added to the solution until the pH recorded by the pH probe says 2 or the solution is clear red. 16.The number of drops added were recorded on the table

17.Steps 9-16 were then repeated with the other two solutions of Antacids Observations
Table 1: TUM’s Ultra Strength reactions to Hydrochloric Acid Drops

Quantitive Observations-pHQualitive Observations
Before adding of Hydrochloric acid6.8 pHOrange, milky, opaque 25 Drops of Hydrochloric acid5.5 pHGrainy, Opaque, white
50 Drops of Hydrochloric acid4.5 pHFizzing, grainy, opaque, white 75 Drops of Hydrochloric acid4.1 pHFizzing, grainy, opaque, white 100 Drops of Hydrochloric acid3.9 pHSlight increase in clarity, fizzing more, less grainy 125 Drops of Hydrochloric acid3.4 pHLess grainy, less white, fizzing less 150 Drops of Hydrochloric acid2.4 pHTranslucent, fizzing less 158 Drops of Hydrochloric acid1.8 pHClear, translucent, grains at the bottom, stopped fizzing, slightly pink

Table 2: Life Ultra Strength Reactions to Hydrochloric Acid drops

Quantitive Observations-pHQualitive Observations
Before adding of Hydrochloric acid8.8 pHMushy, translucent, white 25 Drops of Hydrochloric acid5.5 pHOpaque, white, slight yellow 50 Drops of Hydrochloric acid5.0 pHPrecipitate forming, white, milky 75 Drops of Hydrochloric acid3.6 pHPrecipitate more visible, solid, white, 100 Drops of Hydrochloric acid2.7 pHSolid separating from liquid 125 Drops of Hydrochloric acid2.4 pHSlight pink in color, translucent 7liquid 150 Drops of Hydrochloric acid1.8 pHPink shade in color, solid separated and on top of liquid, Gaseous smell coming Table 3: Compliments Extra Strength reaction to Hydrochloric Acid drops

Quantitive Observations-pHQualitive Observations
Before adding of Hydrochloric acid7.9 pHGreen, grainy, solids at the bottom, opaque 25 Drops of...
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