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Rates Of Reaction Between Magnesium And Hydrochloric Acid

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Rates Of Reaction Between Magnesium And Hydrochloric Acid AIM: The aim of this project is to investigate how changing the concentration of acid will affect the rate of reaction between magnesium ribbon and hydrochloric acid. PREDICTION: I predict that the higher the concentration of Acid the faster the reaction will finish. I know this because as the concentration of the acid increases the reaction times will be faster this is because in concentrated acid there are more acid particles, therefore there is a greater chance of an acid particle hitting a magnesium particle. In dilute acid there are less acid particles. This means there is less chance of an acid particle hitting a magnesium particle as compared with acid of a higher concentration. EQUIPMENT: In my experiment I will be using the following equipment: A Measuring Cylinder to measure the amount of acid to water solution. A Beaker, this is were the solution will be put to react. A Thermometer to measure the temperature of the solution to make it a fair test. ...read more.


Length of magnesium(cm) Concentration Acid to water Time (seconds) 10 3 10 a 0 w 37.96 10 3 8 a 2 w 51.78 10 3 6 a 4 w 1:17.68 50 3 50 a 0 w 16.53 50 3 40 a 10 w 28.96 After taking the preliminary tests and gaining these results I have decided that a total solution of 10cm3 is not enough to get accurate results so I will have a total solution of 50cm3. This is because if I use 10cm3 there is no room for error, it must be very accurate. However if I use 50cm3 . Results: After taking the preliminary tests and deciding on how to do the experiment I began the experiment and gained two tables of results and wrote them down I also down an average table of results. Below is the table of results: Test 1 Total Volume Of Solution in cm3 Length Of Magnesium in cm Concentration Ratio Temp. (oc) At The Start Temp. ...read more.


Although this was a problem my results were still accurate because as the graph and tables show the reaction times were alike but most importantly the graph shows that the reaction times from each test are near enough on the same point. I say this because, as graph 1 shows the Red and White points share the same point on the graph. To make sure my results were reliable I constructed a table of average results. I've done this to see if my results were perfectly matched and by how much. The table and graph above show the average results between both tests. In saying this I had 1 anomalous result and it is highlighted in black on Graph 1. The reason this occurred was because I either measured the acid incorrectly or I made an error timing the reaction. Either way I can use this to now use this to say I could have improved this experiment by using more accurate ways of timing the reaction and more accurate ways of measuring the acid. I say this because if I use more accurate methods I can guaranty I will have no anomalous results or mistakes. ...read more.

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