Acetylene Lab

Chemistry 12 Acetylene Lab March 8th, 2013 Hypothesis If the come in of gas is increase, it would stir a fully combustion becaexercising it contains more nose candy ions after the combination. Observation % of gas in the screen out electron tube ( approximately) % of O2 in the test tube (approximately) Black soot What kind of sound is produced? drag on 1 70. 00% 30. 00% Yes (Whole test tube) Puff steer 2 50. 00% 50. 00% Yes Puff Trail 3 10. 00% 90. 00% Few( head of the test tube) High pitch Pop DiscussionThe musing table do not support the hypothesis, since it shows the result that as the tot of alkyne gas decreases and atomic number 8 gas increases, there would be a greater chance of a fatten up combustion. In trail 1, investigators use 70% acetylene gas and 30% of oxygen gas, which become half(prenominal) combustion. Black soot represents pure carbon, which means it do not pretend a complete combustion since fully combustions formula should have a double replacement wh ich form carbon dioxide and water vapour. Also, when a complete combustion occurs, the test tube should be clean, because there is more oxygen gas to burn the acetylene gas.However, during the experiment, the investigators make some human errors such(prenominal) as do not use precise measure for the acetylene gas and the oxygen gas, acetylene gas leaked from the test tube and so on Conclusion Even though this experiment do not have a fully complete combustion, the investigators can still predict that the less(prenominal) volume of acetylene gas are in the test tube and more volume of oxygen gas are in the test tube, it will have a better chance to form a complete combustion. To improve the quality of the experiment, ensure to use precise measurement and make less human errors as possible or arrange the experiment few more times.