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The rate of Hydrochloric acid reacting with magnesium ribbon.
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Introduction In the reaction between hydrochloric acid and magnesium ribbon, the hydrochloric acid will dissolve the magnesium and produce hydrogen gas. All chemical reactions involve reactants which when mixed may cause a chemical reaction which will make products. In my case the reactants are hydrochloric acid and magnesium ribbon. The chemical reaction takes place when the magnesium ribbon is dropped into the hydrochloric acid. The products that are formed during this reaction are hydrogen gas and magnesium chloride. The formula equation for this experiment is: Mg + 2HCl r MgCl2 + H2 Magnesium + Hydrochloric...
be similar to the ones I already have, so I would not use this for any further experiments. The reason I could use a different type of acid for any further work is to find if the is a difference between them if their molecular build up is different.

I could also use the less reactive metals of the reactivity series zinc, aluminium, iron and lead that way I could find the initial rate of reaction at 5 seconds for the higher concentrations of acid like 3.0M or 3.5M and I could find there relative activity.

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RATES OF REACTION SKILL... RATES OF REACTION SKILL P  There are four factors that affect the rate of a chemical reaction. These are Temperature, Surface area, concentration and the use of catalysts.  I am going to investigate the factors that affect the rate of reaction between marble chips and dilute Hydrochloric acid. The chemical reaction for this is : - CaCO3 S + 2HCL aq CaCL2 aq + H2O l + CO2  The factors that affect this reaction are: - Temperature: - In a cold reaction mixture the particles are moving quite SLOWLY "“ the particles will collide with each other less often, with less energy, and less collisions will be successful. If we heat the reaction mixture the particles will move more Quickly "“ the particles will collide with each other more often, with grater energy, and more collisions will be successful. The more the collisions the faster the rate of reaction.The reactant is broken down faster Surface area: - Large particles have a small surface in relation to their volume "“ fewer particles are exposed and available for collision. This means fewer collisions and a slower reaction. Small particles have a large surface area in relation to their volume. "“ More particles are exposed and available for collision. This means more collision and a faster reaction. The reactant is broken down faster Concentration: - In a reaction where one or both reactants are in low concentrations the particles are spread out and will collide with each other less often resulting in fewer collisions. In a reaction where on or both reactions are in high concentrations the particles are crowded close together and will collide with each other more often, resulting in an increased number of successful collisions. The more the collisions the faster the rate of reaction. . The reactant is broken down faster Plan of carrying out investigation  To make this a fair test we tried to keep the weight of the marble in each investigation the same.  With my partner we investigated the factor of concentration.  We were provided with marble chips of masses in the range of 0.3 "“ 0.6g and 2 mol dm ¯ ³  Firstly we set up the apparatus as shown on the next page. For our reaction we used 0.4g of marble chips and 10 cm³ of Hydrochloric acid in our first experiment and 6 cm³ of Hydrochloric acid 4cm³ water in our second experiment. Once everything was ready we started the investigation. To measure the difference between the two experiments we measured Carbon Dioxide levels. This was done using a gas syringe shown in the set-up on the next page. We recorded our results into tables every ten seconds writing down the amount of CO2 in cm ³. We did this experiment as efficiently as possible using equipment such as stop watches to make our results as exact as possible. We also wanted to keep the experiment safe so we wore safety glasses.  One of the most important equipment in the investigations was the gas syringe. After all this equipment allows us the progress of the investigation accurately. The gas syringe is connected to the test tube by an air tight rubber tube. Because the investigation is air tight, when the reactant reacts with the hydrochloric acid it produces the gas Carbon Dioxide, once produced it pushes the syringe forward and we can measure the rate of reaction.  We started the reaction by placing the marble chip in with the hydrochloric acid and covering the test tube with a bung. We realised that the reaction was over by recognising identical reading in three times.  To get the best results from the investigation we must repeat it several times so that we can average the results to ensure good results.   

RATES OF REACTION SKILL P  There are four factors that affect the rate of a chemical reaction. These are Temperature, Surface area, concentration and the use of catalysts.  I am going to investigate the factors that affect the rate of reaction between marble chips...

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