Lab report

Can antacids neutralize stomach acid more effectively than baking soda?

Aim: My aim for this experiment is to see if antacids are more more effective than Baking soda to neutralize excess stomach acid!

Hypothesis: I think that antacids like tums or rolaids will be more effective than baking soda maybe because more people know about antacids for indigestion since it has a higher pH and have never used baking soda for these problems since its weaker.

Variables:

Independent- We will be changing the antacids.

Dependent- We will be measuring the water, the HCL, the weight of antacids and baking soda and how many drops it takes to neutralize!

Control- We will be keeping the weight of the antacids and baking soda and the amount of water and HCL so its a fair test.

Apparatus- HCL, Water, test tubes, pipette, antacids, Baking soda, Mortar impestal and a buerette and stand and test tube holder.

Method-

1)First put your goggles on for safety!

2)Then make sure all your equipment is set out and ready to go.

3)After that crush all your indigestion tablets and make sure they are the same weight as the baking soda!

4) Then prepare 6 test tubes where 3 of them have water and the other 3 have HCL and make sure they are measured with the same amount

5)Put the same amount of Baking soda and indigestion tablets that you crushed before and put it in the water.

6)Wait until it dissolves in the water and then one at a time you take the pipete and take it in then one by one put it in the test tubes of HCL!

7) Then you add a few drops of universal indicator and see what the pH colour is and see if it has neutralized

8)After your done record your results and see which is more effective!

Antacid	Whole or Crushed	PH	Drops	Rate of change in pH
Gaviscon	Crushed	11	59	PH 3 red
Indigestion tablet	Crushed	10	60	PH 2 red
Baking Soda	Whole	11	78	PH 7 light green