Tommy :Abstract (turn this into one big paragraph)
We studied the effect of temperature on chemical reaction rates. Our group wanted to test whether it was true or not that an increase in temperature will cause an increased rate in a chemical reaction. Our group was most fascinated with chemical reactions; this is why we chose this project.
First, we filled the cup with the first temperature of water. Then, we dropped one tablet into the cup while simultaneously starting the timer. Finally, we stop the timer when the tablet was fully dissolved and then recorded the time. We repeated the steps 5 times for each of the three temperatures.
We observed the Alka-Seltzer tablets dissolving in the water. Just by looking at most of the experiments you can see that temperature does a have an effect on a chemical reactions rate. Once we stop the timer we recorded the data and we noticed that some of the trials we tested did not fit with the others trial of the same water temperature. This worried us, but the average reaction times, reassured us that we did most of the experiments correctly.
After we found the average reaction rates for each of the water temperatures, we saw that our hypothesis was correct and the higher the temperature of a chemical reaction the faster it takes place. However our experiment did not show a double reaction time with an increase in every 10 degrees Celsius.
Dylan :Purpose:
The purpose of this project is to find what temperature of water people should choose so that you can relive yourself of stomach pains. By doing this project we will know which temperature of water has the fastest reaction on your pain. Alka-Seltzer is a commercial antacid that contains aspirin; tablets dissolve in water to give an effervescent solution. The aspirin in Alka-Seltzer is what gives Alka-Seltzer its fast-relieving cure. When Alka-Seltzer is in water it dissolves and when in a hotter temperature of water, it has a faster reaction and cures your pain faster. For this reason we are conducting this experiment.
Tommy :History: (difficult to understand; read aloud to yourself)
Max Trauz was the first scientist to study the motion and movements of atoms in a chemical reaction in 1916; he was then followed by William Lewis in 1918 (Chemical Reactions,2013). The two proposed a theory to explain the reason for a chemical reactions increased rate. The collision theory explains that when suitable particles from different substances collide successfully, then a chemical reaction will take place(Chemical Reactions, 2013). This theory led paved the way for later scientists. Later scientists concluded that heated temperatures cause the suitable particles to move at an increasing rate and more frequently, thus giving the suitable particles a more likely chance to have a successful collision, which induces the chemical reaction.
In conclusion our (no 1st person) topic was developed over time by a variety of scientists, and was sparked by the proposal of the collision theory. After that came the research involving the effect of heat on the collision rate. Then, scientist concluded that heat, and other factors, speed up the collision process, thus causing a faster chemical reaction(Chemical Reaction, 2013).
(Add a paragraph about the history of alka seller or antacids.)
Alexis:Process:
The alka seltzer tablet dissolves into little particles when you put the tablet in water but the tablet dissolves faster in hot water. The Alka-Seltzer tablet does not dissolves fast in cold water because the cold is keeping the Alka-Seltzer together but the water is slowly dissolving the Alka-Seltzer tablet. In heat the alka seltzer tablet melts faster because the heat was pretty hot to quickly melt the tablet (source?) .
The Alka-Seltzer tablet is a combination of sodium bicarbonate, potassium bicarbonate, and anhydrouscitric acid, these mix in the water causing the tablet to dissolve (Alka Seltzer, 2013). This is a result in chemical reaction because the elements were all mixed in to water and not a physical change because it was not physical in any way and a physical change is more like something happening physically for example a freezing a liquid is a physical change. Ice water was the slowest one to melt the tablet because tablet was much colder than just regular water and it did not help the tablet dissolve.
A alka seltzer tablet helps any pains you are having for example relief of minor aches, pains, inflammation, fever, headache, heartburn, sour stomach, indigestion, and hangovers, while neutralizing excess stomach acid.
Vance :Future: (how has Alka-Seltzer changed? what are other similar products?)
If you want a fast chemical reaction, then all you have to do is heat up the experiment. Alka-Seltzer has not really changed over the years because of the effect it has on helping peoples illnesses. Alka seltzer cures stomach aches, burping, heartburn, headache, and body aches(Student science experiments,2012). Future innovations for fast chemical reactions will improve the society because charging a cell phone is a fast chemical reaction and will charge faster as technology progresses.
Question: dylan: What is the effect of temperature on reaction rates of Alka-Seltzer tablets?
Hypothesis: If one Alka-Seltzer tablet is placed into an 236.6 ml. glass of water for each trial, Then the trial with the hottest temperature will have the fastest reaction rate.
Problem : What is the effect of temeperature on the rate at which an Alka Seltzer tablet dissolves in water.
Hypothesis : If one Alka-Seltzer tablet is placed into an 236.6 ml. glass of water for each trial, then the trial with the hottest temperature will have the fastest reaction rate.
Variables : independent: temperature water with alka-seltzer dependent: dissolving rate of Alka Seltzer tablet control: amount of water (list more)
Materials:
1 12 pack- Alka Seltzer tablets
1 thermometer
1clear 354.9 drinking glass
1 946.4 ml. measuring cup
1 masking tape
1 teaspoon
Hot/cold tap water
Ice
1 stopwatch
Lab notebook/pencil
Procedure:
Fill 236.6 ml. of water into a 354.9 ml. glass
Mark water level with masking tape (now you can refill cup to exact level for each trial)
Use the same amount of water for each trial, but change temperature (hot, cold, ice cold)
Check temperature at the beginning of each trial and record it in notebook
Remove thermometer
Ensure your helper is ready to start the stopwatch at the same time you drop the alka-seltzer tablet (the doer and helper should count to three together so that the time will start simultaneously with drop of tablet)
Stir immediately after seeing bubbles of CO2
Look to see if all the little white pieces have dissolved, then yell “stop” so that the helper will stop the timer
Record the time it takes for all the pieces of the tablet to dissolve and repeat for five trials
Repeat experiment four times for each of the three different temperatures
Record times in a chart and calculate an average reaction time for each temperature
Graph: Data Table:
REACTION RATES (sec.)
CONDITION◦C
Trial 1
Trial 2
Trial 3
Trial 4
Trial 5
AVERAGE REACTION RATES
Hot Tap Water (40)
25
27
28
29
23
26
Cold Tap Water (22)
41
45
44
43
41
43
Ice Tap Water (16)
51
44
42
56
47
48
Vance: Glossary(bold in reserach report)
Aspirin: medicine that reduces aches and pains and reduces fever.
Chemical reaction: chemical change which forms new substances.
Dissociates: process by which the action of a solvent or a physical condition change, causes a molecules to separate into simpler groups of ions or atoms.
Ions: atom or group of atoms that has an electric charge.
Molecules: smallest particle of a substance that is made up of two or more atoms.
Products: substance that is formed as the result of a chemical reaction.
Reactants: starting material in chemical reactions.
Reaction rate: rate at which the reactants form the products.
Sodium bicarbonate: white solid that is crystalline but often appears as a white powder.
Solution: homogeneous mixture of two or more substances.
Temperature: property of matter which shows the quantity of energy of motion of the component particles.
Dylan:Reflection:
Throughout this project we learned much about chemical reactions. We learned that Alka Seltzer cures your pain faster when in a hotter temperature of water. I found it surprising that Alka Seltzer would have a faster reaction with hot water rather than cold water. We also learned that Alka Seltzer doesn’t just help with stomach pains but it also helps with many other things such as the flu, colds, and coughs. Our research has helped us advance much in our project.
During our experiment, we had the chance to prove our hypothesis correct. From conducting our experiment we learned that Alka Seltzer does react faster when in hot water rather than cold water. This experiment could have been improved by doing more trials and using a more accurate stop watch. Another idea we could use for the next project would be finding the rate or speed an Alka Seltzer rocket depending on how many tablets you use in the rocket.
Alexis: Work Cited only list sources you have cited; minimum of 5 sources need to be cited)
Comments: What part are Vance and Alexis in charge of?
Alexis:
Vance
Dylan
process
future
purpose
work cited
glossary
edited proposal
Rubric for 2e.
Your Points
Total Points
Purpose
3.5
5
History
3.5
5
Process
3.5
5
Future (Current Applications)
3.5
5
Glossary (10, abc)
4.5
5
Works Cited
4.5
5
Total
23
30
Rubric for 2f- deadline extended to 4/30 You will get Tuesday class time (4/30) to make any additional revisions.
Must use 3rd person AND in-text citations for Purpose, History, Process, & Applications paragraphs.
Pts. Earned
Pts. Possible
Abstract (Q1-2)
4
5
Purpose
3.5
5
History
3.5
5
Process
3
5
Applications (Formerly Future)
2.5
5
Reflection (about research AND lab)
5
5
Glossary
3.5
5
Works Cited
3.5
5
Total
28.5
40
Rubric for 5-6ab- deadline 5/3 You will get class time (4/30 & 5/2) to make additional revisions to your wikispace page.
Dylan :Purpose:
The purpose of this project is to find what temperature of water people should choose so that you can relive yourself of stomach pains. By doing this project we will know which temperature of water has the fastest reaction on your pain. Alka-Seltzer is a commercial antacid that contains aspirin; tablets dissolve in water to give an effervescent solution. The aspirin in Alka-Seltzer is what gives Alka-Seltzer its fast-relieving cure. When Alka-Seltzer is in water it dissolves and when in a hotter temperature of water, it has a faster reaction and cures your pain faster. For this reason we are conducting this experiment.Tommy :History: (difficult to understand; read aloud to yourself)
Max Trauz was the first scientist to study the motion and movements of atoms in a chemical reaction in 1916; he was then followed by William Lewis in 1918 (Chemical Reactions,2013). The two proposed a theory to explain the reason for a chemical reactions increased rate. The collision theory explains that when suitable particles from different substances collide successfully, then a chemical reaction will take place(Chemical Reactions, 2013). This theory led paved the way for later scientists. Later scientists concluded that heated temperatures cause the suitable particles to move at an increasing rate and more frequently, thus giving the suitable particles a more likely chance to have a successful collision, which induces the chemical reaction.
In conclusion our (no 1st person) topic was developed over time by a variety of scientists, and was sparked by the proposal of the collision theory. After that came the research involving the effect of heat on the collision rate. Then, scientist concluded that heat, and other factors, speed up the collision process, thus causing a faster chemical reaction(Chemical Reaction, 2013).
(Add a paragraph about the history of alka seller or antacids.)
Alexis:Process:
The alka seltzer tablet dissolves into little particles when you put the tablet in water but the tablet dissolves faster in hot water. The Alka-Seltzer tablet does not dissolves fast in cold water because the cold is keeping the Alka-Seltzer together but the water is slowly dissolving the Alka-Seltzer tablet. In heat the alka seltzer tablet melts faster because the heat was pretty hot to quickly melt the tablet (source?) .
The Alka-Seltzer tablet is a combination of sodium bicarbonate, potassium bicarbonate, and anhydrous citric acid, these mix in the water causing the tablet to dissolve (Alka Seltzer, 2013). This is a result in chemical reaction because the elements were all mixed in to water and not a physical change because it was not physical in any way and a physical change is more like something happening physically for example a freezing a liquid is a physical change. Ice water was the slowest one to melt the tablet because tablet was much colder than just regular water and it did not help the tablet dissolve.
A alka seltzer tablet helps any pains you are having for example relief of minor aches, pains, inflammation, fever, headache, heartburn, sour stomach, indigestion, and hangovers, while neutralizing excess stomach acid.
Vance :Future: (how has Alka-Seltzer changed? what are other similar products?)
If you want a fast chemical reaction, then all you have to do is heat up the experiment. Alka-Seltzer has not really changed over the years because of the effect it has on helping peoples illnesses. Alka seltzer cures stomach aches, burping, heartburn, headache, and body aches(Student science experiments,2012). Future innovations for fast chemical reactions will improve the society because charging a cell phone is a fast chemical reaction and will charge faster as technology progresses.
Question: dylan: What is the effect of temperature on reaction rates of Alka-Seltzer tablets?
Hypothesis: If one Alka-Seltzer tablet is placed into an 236.6 ml. glass of water for each trial, Then the trial with the hottest temperature will have the fastest reaction rate.
Problem : What is the effect of temeperature on the rate at which an Alka Seltzer tablet dissolves in water.
Hypothesis :
If one Alka-Seltzer tablet is placed into an 236.6 ml. glass of water for each trial,
then the trial with the hottest temperature will have the fastest reaction rate.
Variables : independent: temperature water with alka-seltzer
dependent: dissolving rate of Alka Seltzer tablet
control: amount of water (list more)
Materials:
Procedure:
Graph:
Data Table:
Dylan:Reflection:
Throughout this project we learned much about chemical reactions. We learned that Alka Seltzer cures your pain faster when in a hotter temperature of water. I found it surprising that Alka Seltzer would have a faster reaction with hot water rather than cold water. We also learned that Alka Seltzer doesn’t just help with stomach pains but it also helps with many other things such as the flu, colds, and coughs. Our research has helped us advance much in our project.
During our experiment, we had the chance to prove our hypothesis correct. From conducting our experiment we learned that Alka Seltzer does react faster when in hot water rather than cold water. This experiment could have been improved by doing more trials and using a more accurate stop watch. Another idea we could use for the next project would be finding the rate or speed an Alka Seltzer rocket depending on how many tablets you use in the rocket.
Alexis: Work Cited only list sources you have cited; minimum of 5 sources need to be cited)
Clark, J. “The Effect of Temperature on Reaction Rates.” 11 November 2009.
http://www.chemguide.co.uk/physical/basicrates/temperature.html
Helmenstine, A. “Factors that Affect the Chemical Reaction Rate.” 2013.
http://chemistry.about.com/od/stoichiometry/a/reactionrate.htm
Rader, A. “Rate of Reaction.” 2012. Andrew Rader’s Studios
http://www.chem4kids.com/files/react_rates.html
Sheppard, W. “The Effect of Temperature on Reaction Rates.” 29 May 2009.
http://chemwiki.ucdavis.edu/Wikitexts/UCD_Chem_2C%3A_Kauzlarich/The_Effect_of_Temperature_on_Reaction_Rates#
Volland, W. “Effects of Temperature, Concentration, Catalysts, Inhibitors on Reaction Rates.” 18 Feb 1999.
http://www.chem.uic.edu/marek/apintropage/ap_notes/chapter18/rateseffectstempconcats.ht
No author. “Student Science Experiments.” 2012. Bayer Healthcare LLC. http://www.alka-seltzer.com/as/sudent_experimnt1.html (link did not work)
write title. “Alka Seltzer vs Water Temperature Science Fair Projects.”2013. Super Science Fair Projects. http://www.super-science-fair-projects.com/chemexperiments/alka-seltzer-vs-water-temper…
Comments: What part are Vance and Alexis in charge of?
Rubric for 2e.
Rubric for 2f- deadline extended to 4/30
You will get Tuesday class time (4/30) to make any additional revisions.
Must use 3rd person AND in-text citations for Purpose, History, Process, & Applications paragraphs.
Rubric for 5-6ab- deadline 5/3
You will get class time (4/30 & 5/2) to make additional revisions to your wikispace page.