Conclusions
During the past week I worked on an experiment to see in which substance an Alka-Seltzer will dissolve the fastest. I researched a lot about the components of an Alka-Seltzer and why it dissolves. I found out that what make it dissolve is the baking powder, when the baking powder dissolves the components of it which are citric acid or tartaric acid react with each other and produce carbon dioxide. To test and see in what substance the Alka-Seltzer will dissolve the fastest I used 3 different liquids; sprite zero, tonic water, and white vinegar. I research about the components of each of this and I found out that both tonic water and sprite contain carbonated water. Since what makes the Alka-Seltzer dissolve is the baking powder I predicted that the carbonated water would make it harder for the Alka-Seltzer to dissolve. So in my hypothesis I predicted that the Alka-Seltzer would dissolve the fastest in the white vinegar because it doesn't contain carbonated water. When I tested my hypothesis I used 4 ounces of each liquid and all of them at room temperature because I researched and found out that the temperature the liquid needs to be is room temperature so the results won't get altered. I dropped one Alka-Seltzer in each of the glasses with the liquids and my results where that the Alka-Seltzer dissolves the fastest in sprite zero, then in tonic water and lastly in white vinegar. So my hypothesis was disproved because I predicted that the Alka-Seltzer will dissolve faster in white vinegar because it doesn't contain carbonated water. After I tested my hypothesis I observed that the two substances that had carbonated water where the ones in which the Alka-Seltzer dissolved the fastest. Therefore, I now know that the carbonated water caused the Alka-Seltzer to dissolve the fastest. I used water as my control group and I observed that the Alka-seltzer dissolve the fastest in water. I found out that it dissolves the fastest in water because water doesn't contain citric acid; which all three substances I used do. Since the Alka-Seltzer, is an antacid and it’s designed to neutralize acids, what happens is the Alka-Seltzer takes long to dissolve because there is more acid to neutralize.
I did not only learn in which substance an Alka-Seltzer dissolves the fastest but I also learned many other things. I learned the components of white vinegar, sprite zero, tonic water and Alka-Seltzers. I learn what causes an Alka-Seltzer to dissolve and why it dissolves faster in different substances. But since nothing is perfect I know that there where some things that could have been done better. Therefore, for future labs I recommend to research more about what each component of each substance can affect the pill. Also I recommend to be more exact with the amount on liquid in each cup and to have a better chronometer to obtain more exact results. I can conclude that I did a good experimentation and found out that an Alka-Seltzer dissolves the fastest in sprite because it contains carbonated water.
I did not only learn in which substance an Alka-Seltzer dissolves the fastest but I also learned many other things. I learned the components of white vinegar, sprite zero, tonic water and Alka-Seltzers. I learn what causes an Alka-Seltzer to dissolve and why it dissolves faster in different substances. But since nothing is perfect I know that there where some things that could have been done better. Therefore, for future labs I recommend to research more about what each component of each substance can affect the pill. Also I recommend to be more exact with the amount on liquid in each cup and to have a better chronometer to obtain more exact results. I can conclude that I did a good experimentation and found out that an Alka-Seltzer dissolves the fastest in sprite because it contains carbonated water.