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Investigation: Experiment to show the reaction between Hydrochloric Acid and Magnesium

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Investigation: Experiment to show the reaction between Hydrochloric Acid and Magnesium Aim: To find out the effect of concentration of acid, in the reaction between dilute hydrochloric acid and magnesium ribbon. Magnesium + Hydrochloric Acid - Magnesium Chloride - Hydrogen Research: Before actually starting the experiment I decided to find out some information that I thought would be of some use to me later on. I did this so I could make more accurate predictions and figure out how I shall conduct the experiment safe and correctly to get the results. All of the information was found from 3 sources, the Internet, books provided by the school, and all the preliminary work that was done. I found that 'when a chemical reaction occurs the particles which combine need to collide with each other so that they can swap or share electrons. If you want to speed up a reaction you need to get these particles to hit each other more frequently' 'If a solution is made more concentrated, it means that there are more particles of a reactant knocking about between the water molecules, which make collisions between the important particles more likely'. Apparatus: * Measuring Cylinder - to measure gas produced * Trough - hold water for experiment * Standing Clamp - hold apparatus up ...read more.


This part of the preparation must be done accurately in order not to change the length or surface area of the magnesium ribbon. I will use 10 mls of each specific concentration and will record the results that occur. The magnesium ribbon will be placed into the conical flask and will be measured according to the time it takes for 20mls of hydrogen gas to be produced. This will be the procedure for the whole experiment. I will do this for each specific concentration. I will repeat the experiment 3 times, in order to produce an accurate set of results. I will then obtain an average reading for my results. After the experiment has taken place and I have obtained my results. I will display the recorded results in a table. I will then work out my averages, so that I can display them in my graph. * First of all, I made sure that the apparatus was set up in the correct way. * I filled the measuring cylinder with water, turned it upside down and set it up according to the experiments needs. * I put in the right concentration of solution in the conical flask. ...read more.


This is also shown in my prediction and hypothesis, which explains why the experiment went so well. The results have appeared as they are due to the fact that as the hydrochloric concentration is increased the reaction is greater and at a faster rate, due to the increased chance of colliding ions. All the evidence that I have used to make a conclusion from is accurate and has proven to be reliable, as they have given accurate results. Evaluation: I believe that the experiment went well. I collected sufficient data in order for the experiment to be carried out fairly and precisely. Everything was successful and my final results were proved to be accurate and collaborated with my predictions. The chance of this was increased due to making the test fair and, repeating the test to gain precise data. I believe that over a longer period of time with more concentrations of solutions the experiment could have been done to give a more accurate conclusion, it will also carry more precise results. I could have also organised the experiment a little better by making sure everything is done perfectly and precisely. Apart from this there does not seem to be anything wrong with my results as they clearly show the motive of the whole experiment. ?? ?? ?? ?? ...read more.

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