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

# 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 ? 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 – 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 – 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 – 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 – 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 reactivity?s would dismiss any data already collected because an element?s 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

# Related International Baccalaureate Chemistry essays

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

If the duration is longer, then more electrons flow from the zinc electrode to the copper electrode (anode to cathode) through the electrical wires, while ions flow through the salt bridge to complete. As we know, in a voltaic cell/ galvanic cell, oxidation occurs at the anode (negative electrode)

2. ## Determination of potassium hydrogen carbonate into potassium carbonate

The end point being subjective. i.e. the method was unclear as to when the temperature should be checked. This could have been the potential heat loss during the stirring or when the potential heat loss after the reaction had completed, i.e.

1. ## Investigate the rate of reaction of luminol in various factors. The objective was to ...

I expect the time for chemiluminescence would be shorter for higher temperature and longer for lower temperature, and the graph would be either a curve, decreasing from low temperature to high temperature, or a curve, increase to a peak then decreases gradually from low temperature to high temperature.

2. ## Calcium Carbonate and Hydrochloric Acid

could be that some of the gas that is produced and is escaping, falls down again causing lower loss of weight at that moment. But as its only the 0,0828g reading that fits into that category it is unlikely to be the reason.

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. ## In this experiment, the effect of concentration on rate of reaction was investigated. We ...

It is equivalent to the amount of carbon dioxide formed divided by time. The gradient of the graph can be used to calculate the rate of reaction, because the gradient is equal to a change in the y values over a change in the x values.

1. ## 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

2. ## Measuring the fatty acid percentage of the reused sunflower oil after numerous times of ...

Preparing the sunflower oil: In this investigation the experiment is based on sunflower oil which has had numerous potato frying. So it is also important to prepare fine samples for experiment. Firstly the oil which is going to be used in frying must be unused and the potatoes must be renewed for each frying. • Over 160,000 pieces
of student written work
• Annotated by
experienced teachers
• Ideas and feedback to 