Alka Seltzer Experiment

1056 Words 5 Pages
surface area vs rate of time
In the investigation an experiment is conducted investigate if the breaking of alka seltzer into ½, ¼ and none effect the time it dissolves. The context of the problem is the time it dissolves to have the medicine show its effect. This problem exist in real life as people take alka seltzer to relief heartburn, acid digestion and stomach aches. This experiment would benefit society because it informs the society the better way of consuming medicine or alka seltzer in order to see faster effect in the body.

Aim: To investigate the breaking of the alka seltzer into larger surface area (½ and ¼) affects the time it dissolves.

Hypothesis: The more alka seltzer is broken, it dissolves faster in water and the less it’s broken, slower it dissolves in water.

- 9 alka seltzer
- Room temperature water
- Thermometer
- Timer
- 3 Glass cup or clear plastic cup
- Knife
- Measuring cup

Safety risks and precautions:
Spilling water on electrical appliances, getting a cut with a knife or broken glass
Make sure to proceed this experiment on a table far away from electricity or any electrical appliances.
Be careful when cutting or breaking the alka seltzers.
Be careful not to knock over the
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It was identified as more alka seltzer is broken it is dissolved faster. The experiment was to put alka seltzers that is broken into ½, ¼ and unbroken ones into 125ml, 21 degrees Celsius (room temperature) water. The trend occurred because the decrease of the size of the particles which increase the rate of reaction because the surface area of reactant (alka seltzer) has been increased. A larger surface area has increasing target of colliding with the molecules, the bigger the target is, it is easier to hit the water molecules. This is why the more alka seltzer is broken, it dissolved the

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