6.05 Chemistry

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6.05
Logan Hotaling
Materials Needed:
1. Alka-Seltzer
2. Glass
3. Water
4. Timer

Procedure:
1. First you need to fill a glass up with 8oz of water and have it be 25 degrees Celsius. 2. Then you drop the Alka-Seltzer in the water and time how long it takes it to dissolve in the water. 3. Then we need to make the temperature go up then we need to drop the Alka-Seltzer in the water again and see how long it takes it to dissolve with the new temperature. 4. Now we need 16oz of water at 25 degrees Celsius.

5. Drop one Alka-Seltzer in the water and record how long it takes it to dissolve. 6. Then you need to change the temperature of the water and add one Alka-Seltzer and see how long it takes for it to dissolve.

Conclusion:
1. What two factors did you investigate in you procedure, and why did you choose to compare these two factors?

I chose to compare the Alka-Seltzer and temperature. I chose these two because they seemed like they would give me the best idea of what I was looking for.
2. What other factors did you need to control during your investigation? Explain how you controlled each one in your procedure.

I needed to control the amount of water, temperature, the number of Alka-Seltzers I wanted to use and how fast it dissolved by changing certain things.

3. What was your prediction about the results of each factor tested in your two lab procedures? Explain your predictions based on your knowledge of the dissolving process, collision theory, and reaction rates.

I knew that the more water in the glass would make the Alka-Seltzer dissolve slower but the warmer temperature would speed it up a little bit.

4. What was your prediction about the results of each factor tested in your two lab procedures? Explain your predictions based on your knowledge of the dissolving process, collision theory, and reaction rates.

My prediction was right and I knew this experiment was perfect for...
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