• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

How Does the Temperature of Hydrochloric Acid Affect the Rate of Reaction Between Hydrochloric Acid and Magnesium?

Extracts from this document...


How does the temperature of hydrochloric acid affect the rate of reaction between hydrochloric acid and magnesium? Aim: This coursework is aimed to find out the rate of reaction between hydrochloric acid and magnesium in different temperature. The product of this chemical reaction is magnesium chloride and hydrogen. Safety: We should wear lap coat and wear goggles when doing this experiment, because acid is corrosive and irritant, especially when you boil it, it is very easy to spit into your eyes and it is harmful, so we must keep wearing on the goggles all the time. Lap coat is also needed to protect our skin from contacting the acid. If our skin contact with the acid, we should immediately wash it under the tab water. Magnesium is highly flammable, so we should keep it away from the fire. We should also be careful when using the syringe and other glassware. Preliminary work: In this preliminary work, the aim is to find out the suitable length of magnesium ribbon, the suitable concentration of acid and the suitable volume of the acid, and the temperature range I plan to investigate. I tried a 3 of magnesium ribbon but it gives out too little gas (35) which is very hard to measure and 7 are too long, due to magnesium's mass, it is lighter than acid, so it is floating on the acid which means it's surface area are not all contacting with the acid, which makes the test unfair, so I figure out 5of the magnesium ribbon, (gives out about 55of hydrogen) ...read more.


25 75 29 32 30.5 90 35 38 36.5 105 40 43 41.5 120 45 46 45.5 135 48 47 47.5 150 50 51 50.5 Rate of hydrogen given out every 15 secs at 25?C Time /sec Volume of hydrogen given out / experiment 1 experiment 2 Average 15 10 11 10.5 30 19 20 19.5 45 28 29 28.5 60 36 38 37 75 43 45 44 90 48 50 49 105 49 50 49.5 Rate of hydrogen given out every 10 secs at 30?C Time /sec Volume of hydrogen given out / experiment 1 experiment 2 Average 10 9 10 9.5 20 16 18 17 30 26 27 26.5 40 33 37 35 50 42 45 43.5 60 47 49 48 70 50 49 49.5 Rate of hydrogen given out every 10 secs at 35?C Time /sec Volume of hydrogen given out / experiment 1 experiment 2 Average 10 12 11 11.5 20 24 20 22 30 33 31 32 40 42 40 41 50 49 46 47.5 60 50 49 49.5 Rate of hydrogen given out every 5 secs at 40?C Time /sec Volume of hydrogen given out / experiment 1 Experiment 2 Average 5 10 9 9.5 10 16 15 15.5 15 22 20 21 20 28 27 27.5 25 33 30 31.5 30 38 38 38 35 43 45 44 40 47 49 48 45 50 51 50.5 50 51 51 51 Rate of hydrogen given out every 5 secs at 45?C Time /sec ...read more.


Thirdly, the concentration may not be a constant as the dilute acid's concentration may not be the same when they are given to me .Human eyes are not reliable for accurate measurement, so the ratio of water and acid may varies when I use a measuring cylinder to measure the acid and the water. The acid which is heated may evaporate a bit. These are very hard to improve as human eyes cannot look at things very accurately, also I can just keep the temperature as low as possible to avoid the acid evaporate. Fourthly, the magnesium is always floating on the acid , which varies the contact surface area of the acid with the magnesium and it makes the result inaccurate. Lastly, the reading of the thermometer and the volume of gas syringe may not be very accurate, as I have said , human eyes are not very reliable. Although there is lots of area, I still did all my best to keep the result more reliable and there are several things I can improve. I should measure the volume of hydrogen gas given out in a smaller range which can make the graphs more reliable and accurate, and I should do the experiment several more times and calculate out the average which can make my results more reliable and I should work in group of about three, which can keep the varieties as less as possible and make the experiment more accurate. ?? ?? ?? ?? Chris Chan 2 1 ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Aqueous Chemistry section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Aqueous Chemistry essays

  1. Marked by a teacher

    To investigate the effect of temperature on the rate of reaction

    4 star(s)

    46 47 48 47 220 99 98 98 98 91 92 92 92 51 52 53 52 230 100 100 99 100 93 94 94 94 54 57 58 56 240 100 100 96 95 97 96 58 59 61 59 250 99 95 99 98 60 62 63 62

  2. whether the strength of Hydrochloric acid will affect the speed of the rate of ...

    higher or lower concentrations of hydrochloric acid which will affect the outcome never the less. Prediction I think that my results will show that the hydrochloric acid with a molarity of 2 will finish reacting the quickest because it is the strongest hydrochloric acid and I predict that the slowest

  1. See how different concentrations of Hydrochloric acid change the rate of reaction with a ...

    Test tube rack � Gas syringe � Ruler Safety I will need to make my experiment as safe as possible for myself and other students and they are as follows: � Wear safety goggles as I am using concentrated hydrochloric acid � Care to eyes and the skin besides all

  2. Experiment to see how a difference in temperature affects the rate of reaction between ...

    test fair, I will be using a 100ml measuring cylinder to measure the water and hydrochloric acid accurately, make sure the magnesium strips are all cut to the same length (3cm), use a new test tube after each experiment, be precise with the digital stopwatch, and follow my method even if the experiment is not going to plan.

  1. To investigate how different concentrations of acid affect the rate of a reaction with ...

    Method: 1. Measure 10cm of Hydrochloric acid in a measuring cylinder, concentration of hydrochloric acid. 2. Pour in the concentration of Hydrochloric acid into a test tube, and add Magnesium ribbon. 3. Record the time taken with a stop clock for Magnesium ribbon to dissolve.

  2. How does changing the concentration of hydrochloric acid effect the rate of reaction between ...

    In order to make my result precise and reliable I will need to take 3 repeats for every condition I need to do this so I can discard any anomalies and will need to keep the following the same every time I perform the experiment: - * Temperature of the acid the same.

  1. Rates of Reaction

    products formed in this reaction is carbon dioxide, I will therefore measure the rate of it produced throughout the experiment by the amount of carbon dioxide given off at a certain time by collecting gaseous product in a syringe. The reaction rate or rate of reaction for a reactant or

  2. What effects the rate of a reaction

    This particular theory is the main motive for this investigation. From the experiment I will hopefully able to test and to hopefully prove that this particular theory is accurate. Prediction From the evidence of my theory I predict that the higher the molarity of the hydrochloric acid is the faster the reaction will take place.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work