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Reaction Rates Tom Etra Aim the Aim of the Experiment Is To Investigate the Effect of Changing the Temperature of Hydrochloric Acid On the Speed of the Reaction Between Acid and Magnesium.

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Introduction

Reaction Rates Aim The aim of the experiment is to investigate the effect of changing the temperature of hydrochloric acid on the speed of the reaction between acid and magnesium. Method The equation I will be using in my experiment is Hydrochloric acid + Magnesium ( Magnesium chloride + Hydrogen HCL(aq)+Mg(s) � MgCL((aq)+H((g) Pour 25cm( of hydrochloric acid into a conical flask heat the acid to a certain temperature the temperatures I chose were 10�?,20�?,30�?,40�?,50�? I have chosen these temperatures because they go up in 10's. I will add a length of ribbon into the conical flash at the same time start the stop clock and put the bung connected to the gas syringe into the conical flask. Taking readings of the gas suringe. From my pulmonary tests I have decided to re-think. I was going to take a reading every 2 seconds for 50 seconds but I realized that by 15 seconds the reaction had finished so I am going to take my results every 3 seconds. Disconnect the conical flask, wash out, refill with another acid and heat to a different temperature and repeat exp. ...read more.

Middle

Also I will make sure that the acid is that same volume each time. I will make it a fair test by washing the conical flask thoroughly and drying it thoroughly each time if I wanted to make the experiment more fair I would use a new conical flask each time. My concentration of acid will stay at 2M. Readings In my experiment I will take five readings one at these heats of acid 10,20,30,40,50�? and this will be 2M acid. I have chosen these times because it will produce a fair amount of results over a time that is well spread out. The length of magnesium ribbon will stay the same. I will not record outside of my limits because then it will get confusing and I do not need to there is no place for it in my experiment. In the magnesium I will measure to the nearest millimeter when cutting it with a pair of scissors. My acid will be measured in millimeters to get the most accurate measurement to make it a fair test. I will repeat my results twice to make sure that my results were not just fluke or anomalous. ...read more.

Conclusion

During the test the difficulties I faced were trying to get the heat to the right temp at the right time and trying to put the bung and the magnesium in at the same time we had to start the timer that was hard to do. I would make sure that the conditions on the day were the same i.e. The temperature of the magnesium before it went in the acid. Temperature Volume Of Gas(cm() over 15seconds in (3 sec intervals) 3 6 9 12 15 Average 20 5 10 15 20 25 18.77 30 5 20 25 30 60 35 40 25 30 35 60 80 57.5 50 40 60 75 80 80 83.75 Average 8.75 30 37.5 47.5 61.25 Temperature Volume Of Gas(cm() over 15seconds in (3 sec intervals) 3 6 9 12 15 Average 20 5 10 15 20 25 15 30 5 25 25 30 60 29 40 20 40 60 80 85 57 50 10 20 40 70 75 43 Average 10 23.7 35 50 61.25 Evaluation Evidence Among my results there are a couple of results that are errors. This could have been because the gas suringe got caught or the room temperature could have been different. ...read more.

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