chemistry rates of reaction
...d spilling the acid onto your skin as it is corrosive. If it gets in contact with skin was thoroughly with water and seek medical assistance if necessary. The apparatus used: - 1. Gas syringe 2. Retort stand 3. Magnesium 4. Stopwatch 5. 0.5, 1, 1.5, 2 and 2.5m of hydrochloric acid 6. Measuring cylinder 7. Thermometer Rubber pipe TEST TUBE GAS SYRINGE RETORT STAND METHOD 1. once you have set up the equipment as shown above 2. use the same procedure for each molar of hydrochloric acid 3. get a strip of magnesium which will all be the same length 4. then measure out 20cm3 of hydrochloric acid using a measuring cylinder 5. Pour the hydrochloric acid into a test tube, and then add the magnesium strip. and attach the test tube to the gas syringe 6. Using the stopwatch record the amount of hydrogen produced and note it down every 10 second for as long as you think you should, to get good results. I did it for three minutes Predictions My prediction is that the strongest strength of hydrochloric acid will produce the most hydrogen and the weakest strength of hydrochloric acid will produce the least amount of hydrogen. As the higher the strength of hydrochloric acid the faster the particles will move and collide with other particles the faster this is done the more hydrogen there will be. Temperature By increasing the temperature the amount of energy produced will increase due to the amount of energy the particles will have, this will cause them to collide harder and faster increasing the number of successful collisions. concentration This will affect the rate of reaction as the stronger the acid the more acid particles increasing the chance of collisions. Concentration of hydrochloric acid A graph was plotted to show how different concentrations of hydrochloric acid affect the rate of reaction between hydrochloric acid and magnesium ribbon. The graph will show that 0.5 molar will produce the least hydrogen meaning that low concentration produces a slow rate of reaction and 2.5 molar will produce the most hydrogen meaning that a high concentration will produce a fast rate of reaction. Table of results 0.5 molar 1 molar 1.5 molar 2 molar 2.5 molar time 0 0 0 0 0 0 1 8 19.5 24.5 32 10 2 15 34 36 45.5 20 3 22 42 42 51.25 30 4 27.5 47 50.5 52.25 40 5 32.5 50.75 52 52.5 50 6 34 53.25 53.5 53.5 60 7 35.5 53.25 54.5 53.75 70 8 37.25 53.25 55.25 53.75 80 9.25 38 53.25 55.25 53.75 90 10.5 40 53.25 55.25 53.75 100 11.75 41.25 53.25 55.25 53.75 110 13.25 42 53.25 55.25 53.75 120 14.5 43.25 53.25 55.25 53.75 130 15.75 45.25 53.25 55.25 53.75 1...