From Gas To Rust

Attach a vertical strip of masking tapeline to the side of individually of your poppouring tubes for marking the urine train)and using the perpetual marker, coif a mark on the tape about 1 CM cut from the mom the of the runnel tube. This will be the outdoors water take. 4. Tear off enough steel sheepskin to make a ball about 2. 5 CM in diameter. consumption a p encircle to push the steel fleece down to the bottom of a test tube. Repeat for a total of 3 test tubes with steel wool. 5. Rinse all of the test tubes (three with steel wool and three without) by filling the test tubes with water, allowing the water to sit thither for 1 minute, and then pouring the water out.This step will choke the tell wool in the three tubes that have it thus qualification sure there is enough water present for the oxidation reaction. Treating the the ere test tubes without steel wool the aforementioned(prenominal) way ensures that all variables are controlled. 6. fleck all six of the t est tubes (three with steel wool and three without) peak e down and mount them over the jars so that the water aim is at the starting mark you made in step 3 on from distributively one test tube. 7. You may want to cover your full setup with a big plastic bag to minimize evaporation. Be careful not to knock the test tubes when covering and uncovering. Check at least daily, and write your observations down in your lab notebook k. cautiously mark the water level on the tape on each test tube. 9. When the water level is no longer changing in the test tubes, youre ready t o analyze your results. 10. Measure the divergency in water level between the open end of the test TU be and the water height inside the test tube at the end of the taste. For how many tubes did the water level change? For t irrigate that did Calculate the hoi polloi that corresponds 2 to this difference the total starting volume of air in each test tube.Volume of a cylinder V=nor h Remember, for tubes contain ing steel wool, the wool will displace most of the air. plant sure your amount rod ants and calculations take this into account. 1 1 . Calculate the comparison of oxygen in each test tube. Average the proportion on of oxygen from all the test tubes with steel wool. How does this compare with the value for component part of oxygen in the air that you open up in your background enquiry? Background Information The goal of this experiment is to measure the percentage of oxygen in air Sam peels and this reject will show an provoke way of doing that.The method depends on at mesospheric pressure and a chemic reaction that removes oxygen from the air. I will find out what build 0 f chemical reaction can remove oxygen from the air. Oxidation of campaign, also known as rusting, will do t he trick. Exposed iron will rust in the posture of oxygen and water. I will study this chemical reaction a ND Ill see that oxygen becomes combined with the iron atoms and water to give rise iro n oxides. I thin k this meets middle school level level expectations beca employment it enables me to understand the term s and concepts atmospheric pressure, oxidation of iron and the layers of the atmosphere.The question I am asking is why does the water level eventually stop rising? I wanted to know how overmuch oxygen is in the air and how much of it we consume when we bread the either day. Well this project shows an interesting way of finding out. The atmosphere contains the oxygen we need to breathe to support cellular respiration, the metabolic process that provides the e chemical energy necessary for life. This makes my project possible and yet at the same time ca vitiating. Im going to SE test tubes to measure the percentage of oxygen in my air sample.This is what gave me the idea to do this information experiment. Variables The independent variable was the varying types of metal steel, copper, and iron. The dependent variable was the step on rust on each sample. The c ontrol fifths experiment is the contact air. The constants in this experiment are the type of test tubes used, the time each metal spent submerged in water, the water in each bottle/jar, and the temperature of the surrounding air. Graph Data Table Types of Metal psychometric test 1 Trial 2 Trial 3 Average squealer ml ml mm 21. Ml ml gorgon ml 28. Ml Steel Wool ml mm mm L 34. Ml Hypothesis If the metal rusts, then the level of the water in the measuring beaker will decrease. Conclusion My guessing was if the metal rusts, then the amount of water in the measuring beaker will decrease and it was correct. My data supported my hypothesis because as the metals developed rust, the amount of water in the measuring beakers rock-bottom. The middling for the copper was 21. 3. The average for the iron was 28. 7 and the average for the steel wool was 33. 7. The copped water level decreased the most and the steel wool decreased the least.My question, why does the water eventually stop risin g was answered. I found out that the water level decreased because of evaporation. Reflection loved working(a) on the project but what I enjoyed the most about it was reservation g the test tubes. My data made sense because its shows the water level decreasing for each metal like I said it would in my hypothesis. Now that I have finished my experiment have brand-new questions such h as what would happen if collected air samples at high altitude, and then tested them at low altitude or vice versa).If I ever took a vacation in the mountains, I can use this method to compare oxygen el veils in the air at high and low altitude. I could try doing this experiment at high altitude and comparing t he results with same experiment done at a lower altitude. Can use this procedure to detect decree seed oxygen content in exhaled air. Then I could do background information and find out how much oxygen we consume when we breathe. I think this method is excellent enough to detect the difference an d would provide me with more entire data.