From Gas To Rust

Attach a vertical denude of masking tape to the side of separately of your examine thermionic vacuum tubes for staging the pissing direct)and employ the permanent marker, make a mark on the tape ab bulge 1 CM piling from the mom the of the analyse tube. This will be the extinctside pee train. 4. Tear off enough stain woolen to make a screwball about 2. 5 CM in diameter. Use a p encircle to push the brand wool down to the bottom of a undertake on tube. retell for a total of terzetto rivulet tubes with firebrand wool. 5. Rinse all of the turn up tubes (three with steel wool and three without) by filling the evidence tubes with pee supply, allowing the irrigate system system to hinge upon there for 1 minute, and then pouring the water out.This step will dampen the tell wool in the three tubes that have it thus making certain there is enough water baffle for the oxidation response. Treating the the ere test tubes without steel wool the resembling aut hority ensures that all inconsistents argon controlled. 6. Turn all six of the test tubes (three with steel wool and three without) meridian e down and mount them everyplace the jars so that the water level is at the starting mark you made in step 3 on each test tube. 7. You may want to go along your entire setup with a spectacular plastic bag to minimize evaporation. Be careful not to knock the test tubes when covering and uncovering. Check at least(prenominal) daily, and write your observations down in your testing ground notebook k. Carefully 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 deviance in water level between the unfastened end of the test TU be and the water height inside the test tube at the end of the try out. For how many tubes did the water level change? For t hosepipe that did Calculate the volume that corresponds 2 to this differ ence the total starting volume of diffuse in each test tube.Volume of a cylinder V=nor h Remember, for tubes containing steel wool, the wool will displace about of the activate. Make sure your measure ants and calculations eat this into account. 1 1 . Calculate the counterweight of group O in each test tube. Average the proportion on of group O from all the test tubes with steel wool. How does this equality with the value for persona of group O in the air that you found in your undercoat research? Background Information The remainder of this experiment is to measure the percentage of symbol O in air Sam peels and this avert will show an interesting way of doing that.The method depends on at mesospheric jam and a chemical reaction that removes atomic number 8 from the air. I will make up ones mind out what kind 0 f chemical reaction piece of tail remove atomic number 8 from the air. Oxidation of iron, also known as subscribeing, will do t he trick. Exposed iron will rust in the presence 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 wee iron oxides. I thin k this meets middle school grade level expectations because 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 snag emerging? I wanted to know how a good deal oxygen is in the air and how very much of it we consume when we bread the every day. tumesce this date shows an interesting way of decision out. The atmosphere contains the oxygen we need to fleet to support cellular respiration, the metabolic attend that provides the e chemical energy necessity for life. This makes my project possible and yet at the same time ca vitiating. Im deprivation to SE test tubes to measure the percentage of oxygen in my air sample.This is what gave me the sentiment to do th is science experiment. Variables The independent inconstant was the varying types of admixturelic element steel, copper, and iron. The dependent variable was the amount on rust on each sample. The control 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 adjoin air. Graph Data Table Types of coat Trial 1 Trial 2 Trial 3 Average shit ml ml mm 21. Ml ml gorgon ml 28. Ml firebrand Wool ml mm mm L 34. Ml Hypothesis If the metal rusts, then the level of the water in the measuring beaker will strike. Conclusion My guess was if the metal rusts, then the amount of water in the measuring beaker will decrease and it was correct. My information supported my hypothesis because as the metals developed rust, the amount of water in the measuring beakers diminish. The average out for the copper was 21. 3. The average for the iron wa s 28. 7 and the average for the steel wool was 33. 7. The copped water level decrease the most and the steel wool decreased the least.My question, why does the water eventually stop rising was answered. I found out that the water level decreased because of evaporation. locution loved working on the project but what I enjoyed the most about it was making g the test tubes. My data made sense because its shows the water level decreasing for each metal the likes of I said it would in my hypothesis. today that I have finished my experiment have new questions such h as what would happen if collected air samples at high altitude, and then tried and true 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 function to detect decree seed o xygen 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 radiosensitive enough to detect the difference an d would provide me with more accurate data.