Page
  1. 1
    1
  2. 2
    2
  3. 3
    3
  4. 4
    4
  5. 5
    5
  6. 6
    6
  7. 7
    7
  8. 8
    8
  9. 9
    9
  10. 10
    10
  11. 11
    11

Investigating the Effects of Surface Area on the Rate of Reaction

Extracts from this document...

Introduction

Investigating the Effects of Surface Area on the Rate of Reaction ________________ ________________ Aim: To study the effects of changing the surface area on the rate of a chemical reaction Hypothesis: This hypothesis is based on the Collision Theory, where in order to react, the two particles involved must: 1. Collide with each other 2. The collision must be energetic enough to overcome the activation energy of the reaction 3. The collision must bring the reactive parts of the molecule into contact the correct way â they must collide with appropriate geometry (the reactive parts) Considering that the surface area of a particle is a factor that mainly affects the collision rate of particles, it would be safe to assume that as the surface area increases, the reaction rate increases. The graph should turn out to be something like this: 1. the reaction is the fastest at the start 2. The reaction is slowing down here 3. No more product is formed Amount of product Time Variables: Variable Factor What is manipulated Dependent Time The time it takes for the reaction to complete depends on the surface area of the compounds being used, because it determines the rate in which the reaction will occur. ...read more.

Middle

This divided by 2 equals 0.05 s Data Presentation Graphs Processed Data Magnesium Ribbon Experiment 29.00±0.05+41.00±0.05+34.00±0.052=34.70 ±0.05 s 36.00±0.05+55.00±0.05+43.00±0.052=44.70 ±0.05 s 41.00±0.05+65.00±0.05+50.00±0.052=52.00 ±0.05 s 45.00±0.05+76.00±0.05+55.00±0.052=58.70±0.005 s 47.00±0.05+80.00±0.05+63.00±0.052=63.30 ±0.05 s 52.00±0.05+87.00±0.05+72.00+0.052=70.30 ±0.05 s 35.00±0.05+95.00±0.05+76.00±0.052=79.30 ±0.05 s 70.00±0.05+98.00±0.05+84.00 ±0.052=84.00 ±0.05 s 77.00±0.05+101.00±0.05+88.00±0.052=88.70 ±0.05 s 81.00±0.05+108.00±0.05+91.00±0.052=93.30 ±0.05 s Magnesium Ribbon Experiment â the average of the results Volume in cm3 (±2.5) Time in seconds (±0.05) 5 34.70 10 44.70 15 52.00 20 58.70 25 63.30 30 70.30 35 79.30 40 84.00 45 88.70 50 93.30 Calcium Carbonate â The Marble Chips Experiment 29.00±0.05+27.00±0.052=28.00 ±0.05 s 43.00±0.05+45.00±0.052=44.00 ±0.05 s 52.00±0.05+61.00±0.052=56.50±0.05 s 64.00±0.05+79.00±0.052=71.5 ±0.05 s 76.00±0.05+96.00±0.052=86.00±0.05 s 91.00±0.05+110.00±0.052=100.50±0.05 s 99.00±0.05+128.00±0.052=113.50±0.05 s 110.00±0.05+143.00±0.052=126.50±0.05 s 124.00±0.05+157.00±0.052=140.50±0.05 s 128.00±0.05+171.00±0.052=149.50 ±0.05 s 136.00±0.05+187.00±0.052=161.50±0.05 s 148.00±0.05+199.00±0.052=173.50±0.05 s 156.00±0.05+213.00±0.052=184.50±0.05 s 165.00±0.05+231.00±0.052=198.00±0.05 s 177.00±0.05+243.00±0.052=210.00±0.05 s 194.00±0.05+258.00±0.052=226.00±0.05 s 208.00±0.05+273.00±0.052=240.50±0.05 s 221.00±0.05+290.00±0.052=255.50±0.05 s 231.00±0.05+304.00±0.052=267.50±0.05 s 243.00±0.05+319.00±0.052=281.00±0.05 s Calcium Carbonate â The Marble Chips Experiment Volume in cm3 (±2.5) Time in seconds (±0.05) 5 28.00 10 44.00 15 56.50 20 71.50 25 86.00 30 100.50 35 113.50 40 126.50 45 140.50 50 149.50 55 161.50 60 173.50 65 184.50 70 198.00 75 210.00 80 226.00 85 240.50 90 255.50 95 267.50 100 281.00 Sodium Carbonate â The Powder Experiment 3.00±0.05+2.00±0.052=2.50±0.05 s 6.00±0.05+3.00±0.052=4.50±0.05 s 13.00±0.05+5.00±0.052 =9.00±0.05 s Sodium Carbonate (Powder Experiment) ...read more.

Conclusion

For example, if I used magnesium, to study the effects of surface area on the rate of reaction, I would only you magnesium ribbon and magnesium powder. Studying different elements with different reactivityâs would dismiss any data already collected because an elementâs position on the reactivity series may also determine the rate of reaction. Use the same element. 1. Amount of People involved in the experiment 1. If I had to do the experiment again, with the same apparatus, I think I would like to have 3 people participating in the collection of data. 1 person would be watching the syringe rise and call out to record whenever it rose, the 2nd person would time it, and the 3rd person would record it. This time, the data may be even more accurate, because no one is taking their eye off the experiment, like I was doing during my experiment just to record data. I feel that altering these aspects of the experiment would increase the level of accuracy, as to get more substantial data to calculate the order of reaction. Unfortunately with the data I have so far, I am unable to derive the concentrations of the substances I had utilized in my experiment. However, as the objective was to investigate whether or not different surface areas affected the rate of the reaction, I think that I have produced enough data to support my theory. By Jade Waqaliva ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our International Baccalaureate 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 International Baccalaureate Chemistry essays

  1. Calcium Carbonate and Hydrochloric Acid

    Looking at the two graphs one must notice that the final loss of weight over time for the two reactions is not the same, which it is supposed to be (see explanation in "data processing and presentation" above). This suggests that the marble chip reaction was not over when the recording of data stopped.

  2. Design Lab, HCl + Marble chips

    > Mixing the reactants. The reactants will not be mixed once the marble powder is added to the HCl. This is because it is difficult to measure the number and degree of mixing a solution. And if this process is performed, it would open room to errors and flaws in the experiment.

  1. The purpose of this investigation is to determine the effect varying temperatures have on ...

    Finally figure 3, illustrates that as the temperature of the glycerin increase the mean time taken for marble to travel through 50mL of glycerin decreases. Also the graph illustrates that the time taken decreases as temperature increases in an inversely proportional manner.

  2. Aim: To estimate volumetrically the amount of Calcium carbonate present in the eggshell

    but the mass of both when they were transferred to the conical flask some bit of it still remain on the watch glass or fell over. The experiment was quite perfect with least amount of uncertainties as quite accurate digital products were used to measure the weight and the only

  1. The rate of reaction between sodium thiosulfate and hydrochloric acid

    Close the tap of the third burette and pour hydrochloric acid into the burette through the funnel. Open the tap and release 10ml of hydrochloric acid 2.00 M into the conical flask containing dilute sodium thiosulfate. 7. When the cross fully disappears, immediately stop the watch and record the time taken for the cross to disappear.

  2. Hydrogen Gas Collection Lab CE (6/6) A sample of solid magnesium ribbon, measuring approximately ...

    0.037g +/- 3% of Mg(s). To determine the percentage error in the investigation regarding the reaction of 14.90 cm3 +/- 0.3% of 6 mol dm-3 HCl(aq) and 0.037g +/- 3% Mg(s), the following equation is applied: Percentage error in the number of moles of hydrogen gas that should be produced

  1. How duration affects the rate of electrolysis in a Voltaic Cell

    Therefore the rate of change is 0.002 ± 0.334 g/s Table 3 - Rate of change for each time interval for cathode (copper electrode) Time (±0.21s) Rate of change of cathode (copper electrode) (g/s) 60.00 0.002±0.334 120.00 0.002±0.091 180.00 0.002±0.046 240.00 0.002±0.027 300.00 0.002±0.023 360.00 0.002±0.013 420.00 0.002±0.010 To calculate

  2. The purpose of this lab experiment is to determine whether different ionic compounds containing ...

    Uncertainty = (0.005972 kPa/s - 0.001445 kPa/s) / 2 = 0.002264 kPa/s 3. C2H6O and NaCl: (0.0002420 kPa/s + 0.004792 kPa/s + 0.0009713 kPa/s + 0.001206 kPa/s + 0.001038 kPa/s) / 5 = 0.001650 kPa/s a. Uncertainty = (0.004792 kPa/s - 0.0002420 kPa/s) / 2 = 0.002275 kPa/s 4.

  • Over 180,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work

Marked by a teacher

This essay has been marked by one of our great teachers. You can read the full teachers notes when you download the essay.

Peer reviewed

This essay has been reviewed by one of our specialist student essay reviewing squad. Read the full review on the essay page.

Peer reviewed

This essay has been reviewed by one of our specialist student essay reviewing squad. Read the full review under the essay preview on this page.