'Investigating Factors That Affect the Rate of Reaction\r'

'Investigating Factors that Affect the mea convinced(predicate) of Reaction of the Decomposition of cacoethes content henry peroxide Emilio Lanza Introduction- In this audition, the consecrate of response, opined in kPa sec-1, of the vector decomposition of hydrogen peroxide give be investigated to see how the sort in slow-wittedness of hydrogen peroxide and the ex dislodge in temperature affect the rate of reaction. The information leave alone be collected by measuring the bollix up pressure. The product of Hydrogen Peroxide is oxygen in a gas state thus it is obligatory to practice the gas pressure sensor.By scheming the difference of the gas pressure divided up by the amount of time from the sensitive entropy collection it is able to find bulge the rate of reaction of the decomposition of hydrogen peroxide. * Control Variable- 1mL of yeast (catalyst) is beness apply in every struggle. The volume of H2O2 is of all time 4 mL, even though the concentratio n transfers and the sizes and type of interrogatory electron thermionic valve was the identical because it so-and-so change the pressure. * Independent Variable- concentration of H2O2 (M) and the temperature (°C) * Dependent Variable- The rate of reaction of the decomposition of hydrogen peroxide > rate of reaction = ?Pressure (kPa)Time (sec) . * Research Question- it is needed to calculate the rate of reaction (kPa sec-1) of the decomposition of H2O2 to show how different factors such as the change in concentration and the change in temperature of H2O2 affect the rate of reaction. Materials and Method- Materials: * 0. 5 M yeast groundwork (the catalyst) †15 mL * 45 mL of 3 % H2O2 source * A thermometer * A com siteer with LoggerPro schedule. * A Vernier computer interface * A Vernier shoot a line Pressure sensing element * A 1 l beaker * A match to shadowy up the etna burner * A tripod 2 10 mL probe tobacco pipes * Two 10 mL pipet * Distilled piddle †15 mL * A matt/ coating that is elevate disgustful * 700 mL of way temperature wet from a sink * A one-hole guard showstopper with stem * Two scrutiny thermionic valve holders * Two 10 mL gradational piston chambers * A bunsen burner * Two upstanding gum elastic stopper * fictile tubing containing twain Luer-lock connectors * A one-hole rubber stopper with stem * A turn out piping rag Procedure: disperse 1 of the experiment: Decomposing 3 % of H2O2 base with 0. 5 Yeast at close to 30°C 1. deport the 1- fifty beaker and give 700 mL of room temperature weewee.Take the tripod, ass a matt/c all over that is fire resistant on top of the tripod and onto the matt/cover short letter the 1-liter beaker that has been absorbed up with 700 mL of room temperature body of wet from a sink. 2. frontmost hook the rubber render from the etna burner to a gas source, then move screening a match and turn on the gas source. Once the gas is on light the match and the n light the bunsen burner. (MAKE SURE TO NOT cremate YOURSELF)!! 3. Place the lit bunsen burner underneath the tripod so it can begin to heat the 1 liter beaker with the 700 mL of room temperature water from the sink. . submit a thermometer into the 1 liter beaker that is universe heated and do the flame of the bunsen burner so it will heat the water to a temperature of most 30°C. 5. Take the 10 mL pipette and the 10 mL- gradational cylinder use the pipette and take away 4 mL of H2O2 and development a 10 mL pipette transfer 4 mL of H2O2 from a container into the 10 mL have cylinder. 6. Take a 10 mL tally tube and add cope with 4 mL of H2O2 from the 10 mL graduated cylinder into the 10 mL examen tube. Once that is do, take a rubber stopper and seal the 10 mL try out tube containing the H2O2.Use the hear tube holder to hold the rivuletify tube into the 1 liter beaker the is being heated to a temperature of round 30°C. rush sure that the majority of the sampl e tube is submersed in water. 7. using the former(a) 10 mL pipette, transfer 1 mL of 0. 5 M Yeast into the an separate(prenominal) 10 mL graduated cylinder. From this graduated cylinder, transfer the 0. 5 M Yeast to a sensitive 10 mL running play tube; seal the tryout tube with a new solid rubber stopper. With the early(a) stress tube holder, place this establish tube containing 1 mL of 0. M Yeast into 1 liter beaker that is before long being heated to a temperature of near 30°C. 8. Turn on a computer and start the LoggerPro Program. 9. Connect the splosh Pressure Senor to Channel 1of the Vernier computer interface and with the correct cable splice the Vernier computer interface to the computer. 10. Take the plastic tubing with the Leur-lock connectors at from each one end of the tubing, connect the tubing to the base on the one-hole rubber stopper and the other(a) end of the plastic tubing, it must be connected to the white stem on the end of the Gas Pressure det ector called a Luer-lock. MAKE SURE THE charge plate TUBING TIGHTLY SECURED OR THE pickicle accelerator WILL ESCAPE AND IT WILL draw IT IN ACCURATE READINGS). 11. Once the LoggerPro Program has been opened make sure that the pronounce on the x-axis is time in seconds and that the units on the y-axis is pressure in kPa before roll up the entropy. 12. Leave the examine tubes in the water bath for at least ii transactions so that the declarations in the running game tube have a temperature of round 30°C. Once the water is round 30°C, record this temperature into a information submit. When two minutes have passed by, get the reaction and collect the pressure data.Remove twain test tubes from the water by retentivity onto the test tube holder, place them in a test tube rack and remove each seal from the test tubes. Transfer the yeast reply from its test tube into the test tube containing H2O2 solution and shake lightly to mix the two solutions together. 13. As quick as attainable seal the test tube with the one-hole stopper connected to the Gas Pressure detector and place the test tube back into the water by holding the test tube with the test tube holder. contiguous click collect data on the LoggerPro Program to begin collecting data. THE final TWO STEPS ARE decisive AND MUSTBE DONE AS QUICK AS POSSIBLE TO AVOID ANY outside(a) INFLUENCES). 14. It is needed to collect the data for tierce minutes once three minutes is up, c arfully remove the test tube from the water by holding onto the test tube holder and set it in the test tube rack. Next easily and carefully begin to tale out the stopper from the test tube allowing the gas pressure to escape. 15. Store the results from the first trial by selecting Store Latest cash in ones chips from the Experiment menu. aft(prenominal) doing this a table of data and the graph will be saved. hence make sure to clean and flake the solution that is in the test tube. restate the first assort another two more time so you can have three trials in total. then(prenominal) print the graph and the full data table from each trial. case 2 of the experiment: Decomposing 1. 5 % of H2O2 solution with 0. 5 Yeast at or so 30°C 1. Take a 10 mL graduated cylinder and using a 10 mL pipette (make sure you are using the said(prenominal) pipette for the H2O2 as in front trials and don’t interchange this pipette for the one being used with Yeast) fill 2 mL of H2O2 from the same container wish it was done in vocalisation 1 into the 10 mL graduated cylinder.Once that is done insert 2 mL of distilled water as well into the graduated cylinder containing H2O2. 2. Now grab the 10 mL test tube (which has been thoroughly swear out with water) and insert the 4 mL of H2O2 which has been mingled with the distilled water from the 10 mL graduated cylinder into the 10 mL test tube. Then take the 10 mL test tube and with the H2O2 seal it with a rubber stopper. Use the test tube holder so you can place the test tube in the 1 liter beaker that is being heated to 30°C. Be sure that the test tube is deep enough in the 1 liter beaker. . Using the other 10 mL pipette, take the 1 mL of 0. 5 M yeast and our it into the other 10 mL graduated cylinder. Then grab the graduated cylinder and put the 0. 5 M yeast to a new 10 mL test tube; close the test tube so no air comes in with a new rubber stopper. With the other test tube holder, place this test tube containing 1 mL of 0. 5 M KI into 1 liter beaker that is currently being heated to a temperature of about 30°C. Repeat travel 13-18 from diverge I. disclose 3 of the experiment: Decomposing 0. 75 % of H2O2 solution with 0. 5 Yeast at about 30°C 1.Take a 10 mL graduated cylinder and using a 10 mL pipette (make sure you are using the same pipette for the H2O2 as in forward trials and don’t interchange this pipette for the one being used with KI) transfer 1 mL of H2O2 from the same container like in part I i nto the 10 mL graduated cylinder. Add 3 mL of distilled water into the graduated cylinder containing H2O2. Mix the solution gently. 2. Take a 10 mL test tube (which has been cleaned after previous trials) and transfer 4 mL of H2O2 confused with distilled water from the 10 mL graduated cylinder into the 10 mL test tube.Then seal the 10 mL test tube containing the H2O2 with a solid rubber stopper. With one of the test tube holders, place the test tube into the 1 liter beaker that is currently being heated to a temperature of about 30°C. Make sure that the majority of the test tube is submerged in water. 3. Using the other 10 mL pipette, transfer 1 mL of 0. 5 M yeast into the other 10 mL graduated cylinder. From this graduated cylinder, transfer the 0. 5 M yeast to a new 10 mL test tube; seal the test tube with a new solid rubber stopper.With the other test tube holder, place this test tube containing 1 mL of 0. 5 M yeast into 1 liter beaker that is currently being heated to a temp erature of about 30°C. Repeat steps 13-15 from part 1. leave 4 of the experiment: Decomposing 3. 0 % of H2O2 solution with 0. 5 Yeast at about 35°C 1. For this part double up the steps 6-7 and 13-15 from part 1. The tho liaison that is needed to be changed is that the water ineluctably to be about 35°C. commence 5 of the experiment: Decomposing 3. 0 % of H2O2 solution with 0. 5 Yeast at about 40°C 1. For part 5 redo the steps 6-7 and 13-15 from part 1.The only thing that is needed to be changed is that the water needs to be about 40°C. Steps once all the basketball team parts of the experiment are transact 1. Now image at the data table that has been filled in for each trial from each and calculate the intermediate reaction rate (kPa sec-1) of the decomposition of H2O2 that occurred over 3 minutes for each part and put it into the analysis table 2. Insert the concentration of H2O2 and yeast from each part into the analysis table as well. 3. Make sure to find the average temperature (°C) and take it in the analysis table. . Then equal and contrast the different effects the rate o reaction caused by the change in concentration of H2O2 and in the change of temperature. (The data table is an example of the data table that will be printed from the computer after each trial and part is done from LoggerPro Progam. The only thing is that it will record the gas pressure until 3 minutes. Again only an example how it should look like). The Gas Pressure from the Decomposition of H2O2 After Every Second| Time (sec)| Gas Pressure (kPa)| 1| | 2| | 3| | 4| | 5| | 6| | 7| | 8| | | | 10| | Data summary Table for the Decomposition of H2O2| helping #| bonny Temperature (°C)| Average Rate of Reaction (kPa sec-1)| concentration of H2O2 in %| Concentration of Yeast (M)| sort 1| | | | | Part 2| | | | | Part 3| | | | | Part 4| | | | | Part 5| | | | | The Temperature (°C) of the Water During Each Part of the Lab and Each Trial | part of Experim ents| Trial 1| Trial 2| Trial 3| Part 1 Temperature (°C)| | | | Part 2 Temperature (°C)| | | | Part 3 Temperature (°C)| | | | Part 4 Temperature(°C)| | | | Part 5 Temperature (°C)| | | |\r\n'