Alka Seltzer Lab Report

Hypothesis: Altoid and Smarties will dissolve the fastest and Sweet tarts will dissolve the slowest.

In this lab we tested how changing the content of the water affects the speed of the alka seltzer dissolving. My hypothesis was that the tap water would dissolve the tablet fastest, the salt water would be second fastest, and the sugar water would be the slowest. I was correct that the tap water would dissolve the fastest, but I was wrong in that the salt water would dissolve faster than the sugar water. I think that our results came out the way they did because of the amount of sugar and salt we put into the water. When we put the sugar and salt into the beakers, we came up with those measurements on the spot. After the salt and sugar had been added, the salt water was very cloudy, but you could barely tell the tap water from the sugar water.

One of our flaws was that the temperature of the water was not exactly the same when we did the different trials. The temperatures were slightly off from our recorded value during the experiments. The change in temperature would affect the time it took for the Alka-Seltzer tablet to dissolve in the water. If there was a direct relationship between water temperature and dissolve time, we would not be able to see it because the temperatures are off and the dissolve times are not associated with the correct temperature. Another flaw is that we did not use the same amount of water throughout the experiment. We used a beaker to measure the water, which did not result in accurate measurements. The difference in amount of water could result in a difference in reaction time. The third flaw in the experiment was that during the reaction of the warm water, the water in the cup overflowed and spilled, bringing some of the Alka-Seltzer tablet with it. There were different amounts of tablet in different areas of the water, which means a different amount of Alka-Seltzer remained inside of the cup in each trial. This difference would mean that data for the warm water would fluctuate and we would not have accurate

How does the temperature affect the speed in which an Alka-Seltzer tablet fully dissolves in three cups filled with water with different temperatures.

In this experiment the scientists are looking for how gas production is effected when different sized Alka-Seltzer tablets are put into water. The independent variable is the different sizes while the dependent variable is the amount of gas produced. A constant variable includes the same brand of Alka-Seltzer tablets, the volume of water and same starting temperature. Finally the scientist’s control variable is the first trial testing the whole tablet comparing its reaction time to each new piece.

The next step in this lab is to rinse the Erlenmeyer flask with distilled water down the drain and then repeat the experiment, this time adding 10 ml of 0.10M KI and 10 ml of distilled water to the flask instead. The flask should again be swirling to allow the solution to succumb to the same temperature as the water bath and once it has reached the same temperature, 10 ml of 3% H2O2 must then be added and a stopper must be immediately placed on the flask and recording should then begin for experiment two. After recording the times, the Erlenmeyer flask must then be rinsed again with distilled water down the drain. After rinsing the flask, the last part of the lab can now be performed. Experiment three is performed the same way, but instead, 20 ml of 0.10 ml M KI and 5 ml of distilled water will be added and after the swirling of the flask, 5 ml of 3% H2O2 will be added. After the times have been recorded, data collection should now be complete.

For our lab, we have six beakers of water. Three of the beakers contain high temperature water that range from 46 ℃ to 55 ℃, while the other three beakers contain room temperature water that range from 22 ℃ to 23 ℃. Then, we take six different colored Alka Seltzer tablets, and place them into the beakers one at a time. We record the length of time it takes for each Alka Seltzer to dissolve

My assumption were people drinking 16 mL of water will have higher rate, compared to those with more urine than to drink Gatorade. In addition, people who drink regular soda will love them and the water is very low, as water strengthens urine. On the other hand, drinkers of Gatorade drink more water than urine more acidic than water. PH 7 Analysis

in the data is how it shows that larger pieces dissolve faster than smaller ones. As stated

At the T zero time interval all of the groups were found to be at about the same starting point with no real deviation between the groups that exceeded the standard error. At the 30 minute interval however, the Coke group were found to have the highest flow rate when compared to the other groups. The non-drinker and Gatorade groups were found to have about the same flow rate at the thirty minute interval while the water drinker group was found to have the lowest flow rate at the first time interval. At the sixty minute interval the drinker groups were all within range of each other while the non-drinker group had a substantial difference in flow rate and the initial steps towards a decrease in flow rate. The ninety minute interval demonstrated a spike in the flow rate for the Coke group along with an equal flow rate for the water and Gatorade group, by comparison the non-drinker group continued the downward trend although the volume levels did not drop by a dramatic amount there was still a decrease. At the end of the experiment the water group peaked in flow rate although not to the level of Coke in the ninety minute interval. Coke produced the second highest flow rate, with Gatorade behind it at the end of the

Although weak electrolytes can conduct electricity, it is unable to perform as well as strong electrolytes due to the fact that it carries fewer ions. (Conductivity Theory And Practice 5-6) Based on part A of the experiment, the usage of the conductivity sensor was to measure and determine the current within the various brands of sports drink in order to record the different electrolyte levels. Additionally in part B, the technique of a pipette allowed the transport of an extra 10 additions of 1mL aliquots of the selected sport drink whilst the magnetic mixer consistently stirred the solution.The focus of this experiment, is to identify the conductivity of various brands consisting of isotonic, hypertonic and hypotonic sports drinks. Based on logic, it is predicted that Maximus will consist of the highest level of conductivity, followed by Powerade and then Gatorade due to the fact that there is an excessive level of electrolytes due to salt ions. In terms of association to the experiment, the independent variable is adjusted by the variety of sport drinks, directly influencing the dependent variable. Whilst the dependant variable aims to measure the conductivity of each

Subjects performed an experiment to investigate the effects of fluid ingestion on kidney function, in which they measured with the kidney output. Before beginning the experiment, each subject was to take a sample collection and that was Sample 1. Once returned to class, the subjects recorded the time of urination and began to do the investigation. In order to begin the investigation, subjects drank one of the four fluids, and measured the effect it had on the urine output. The four fluids were bottled water, Gatorade, salt water, and black coffee. While preparing for the experiment, the contents of each of the solutions was investigated and written down to test what the solution could do to the balances in the body. Subjects figured out the

We both conducted the experiment each in our own test tubes to compare results. When we poured our Gatorade solution into the test tubes, we realized that we really only needed 1/16th of the Gatorade solution. After we poured the detergent into the test tubes, the solution became a dense, sticky blue goo. As we shook the solution in the test tubes, we noticed that the detergent was so thick and dense, it was difficult to mix. When the pineapple juice was added, it sunk to the very bottom of the test tubes, mixing this wasn’t as difficult as mixing the detergent, but this time, foam started form on one of them. (Humnah’s) Now, the color of the solution is blue but with a tint of green because of the pineapple juice. The last step was the alcohol, and immediately after it had been trickled down the test tube, a white layer started to appear at the top. After we let this sit for about five minutes, a white gooey layer hovered on

Review the four factors of dissolving you have just investigated. Given the correct solvent for a solute, what could you do to hasten the solution process?

Have you ever took a sip of water, only to find it disgusting and hard tasting? It was probably because there was too much chlorine or the pH level wasn’t good. In my experiment, I am going to compare ten different kinds of bottled water to tap water by testing for pH, chlorine, and a few other measurements so you can find out what to drink when you’re thirsty. I am going to test the waters by dipping testing strips into the water and comparing those results to those of the tap water. My hypothesis is that the pH level of the tap water will be higher than that of the bottled water, but the chlorine in the tap water will be higher than the amount of bottled water.