Title
The Effects of Rolaids, Tums, and Alka-Seltzer on Stomach Acid
Materials Used
A.) 6 PH Sticks and each one labeled Acid #1, Acid #2, Base #1, Base #2, Unknown #1, and Unknown #2
B.) 3 Test Tubes
C.) 1 Tray
D.) 3 Stirring Rods
E.) 1 Dropper
Steps
A.) 1 drop of HCL on Acid #1 strip
B.) 1 drop of Acetic Acid on Acid #2 strip
C.) 1 drop of Ammonia on Base #1 strip
D.) 1 drop of Bleach on Base #2 strip
E.) 1 drop of Lemon Juice on Unknown #1 strip
F.) 1 drop of Cocoa Cola on Unknown #2 strip
G.) 2 Drops of HCL in each test tube
Results on PH Grid
A.) Acid #1 PH is 1(Acidic)
B.) Acid #2 PH is 6(Acidic)
C.) Base #1 PH is 8(Basic)
D.) Base #2 PH is 7(Neutral)
E.) Unknown #1 PH is 2(Acidic)
F.) Unknown #2 PH is 4(Acidic)
Ingredients Used
A.) Rolaids (active ingredients-Calcium Carbonate 1000mg, Magnesium Hydroxide 200mg, Simethicone 40mg)
B.) Tums (active ingredients- Calcium Carbonate 1000mg)
C.) Alka-Seltzer (active ingredients- Anhydrous citric acid 1000mg, Aspirin 325mg, Sodium Bicarb 1916mg)
Observation
A.) After crushing each antacid, they are then placed each one in the test tube of HCL and sat there for 3 minutes
B.) Tube 1(Alka-Seltzer) dissolved
C.) Tube 2(Rolaids) chalky appearance, material remained to the top undissolved
D.) Tube 3(Tums) material settled to the bottom and material is undissolved
Results of Antacid
A.) Tube 1(Alka-Seltzer) PH is 8(Basic)
B.) Tube 2(Rolaids) PH is 6(Acidic)
C.) Tube 3(Tums) PH is 7(Neutral)
danielle84
NotesfromclassAP.docx
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