The Rate of Reaction When Dissolving Sugar

The Rate of Reaction When Dissolving Sugar

Length: 711 words (2 double-spaced pages)

Rating: Excellent

Open Document

Essay Preview

More ↓
The Rate of Reaction When Dissolving Sugar


I have been asked to perform an investigation on the length of time it
takes for a certain amount of sugar to dissolve in a certain amount of
water at different temperatures. I will investigate whether the time
taken at one temperature and another will be the same, quicker or
slower using scientific methods.

Identifying Key Factors

The factors that would affect the dissolving rate are: -

· Volume of water

The larger the volume of water, the quicker the sugar will dissolve
because there is more particles for the sugar molecules to collide

· Mass of sugar

The more sugar there is the dissolving rate will be slower as there is
more molecules to collide with the water particles.

· Size of sugar particles

The bigger they are the slower they will dissolve.

· Temperature

The higher the temperature the quicker the sugar will dissolve

The variable I am going to change is temperature. I will keep all
other factors constant to make the experiment fair and so the results
are reliable.

Reasons for doing a pre-test

I am going to perform a pre-test so that I have an idea of the
quantities of Sugar and water I will need to use in my actual
experiment. Doing a pre-test means I will get a more accurate result
when it comes to do the actual experiment.

Pre-test method


· Glass Beaker

· Measuring cylinder

· Tripod

· Bunsen Burner

· Stirring Rod

· Thermometer

· Stopwatch

· Heat proof mat

· For safety: Goggles

· Weighing scales

· Gather equipment and set up as shown below:

· Choose your temperatures (I am going to perform the pre-test with
the temperatures 20°C, 40°C and 60°C)

· Measure 10g of sugar and 100cm³ of 20°C water

· Pour the water and sugar into the glass beaker and start the clock.

How to Cite this Page

MLA Citation:
"The Rate of Reaction When Dissolving Sugar." 23 Feb 2020

Need Writing Help?

Get feedback on grammar, clarity, concision and logic instantly.

Check your paper »

Speeding Up the Dissolving Process Essay

- Speeding Up the Dissolving Process 1.Planning Problem: What speeds up the dissolving process. Hypothesis: I think these factors will affect the dissolving process: vTemperature at which the reaction is carried out. v Particle size of the solute. v Stirring of the solution. However in my investigation, I am investigating temperature and the particle size of the solute. Prediction From using my scientific knowledge and understanding, if the particle size of the solute is smaller, the particles can easily diffuse with the solvent's particles and fill in the spaces between them....   [tags: Papers]

Free Essays
676 words (1.9 pages)

The Effect Of Concentration And Temperature On The Rate Of Reaction Essay

- The purpose of this experiment is to understand how various chemicals interact with one another in order to determine the role of each chemical. In addition to this, the effects that concentration and temperature has on the rate of reaction were determined. In order to do this multiple trials and observations were made while mixing constant concentrations of the chemicals in order to test a specific chemical which varied in concentrations. To determine the effect of temperature, a solution was either heated or cooled....   [tags: Chemical reaction, Reaction rate, Rate equation]

Research Papers
1318 words (3.8 pages)

Investigating The Reaction Rate Of The Concentration Of Reactants Or Products Per Unit Of Time

- Introduction: A chemical reaction is a process in which one or more substances are converted into other substances (Brown et al. 2015). The speed of a chemical reaction is called the reaction rate (Brown et al. 2015). The reaction rate is the change in the concentration of reactants or products per unit of time (Brown et al. 2015). Sometimes it is possible to measure the rate of reaction by timing a change in appearance (Van Norman 1963). Activation energy is the least amount of energy needed to break the chemical bonds of reactant molecules so that they can form new products (LAB)....   [tags: Chemical reaction, Chemistry, Reaction rate]

Research Papers
1547 words (4.4 pages)

The Rate Of Reaction By Measuring The Increasing Absorbance Of 430 Nm Light

- In this experiment, spectrophotometry will be used to measure the rate of reaction by measuring the increasing absorbance of 430 nm light by I2, as concentration of iodine increases.1 The order of a chemical is the number by which the rate of the reaction exponentially increases with increasing concentration of the chemical, and it’s always a whole number. An order of 0 is assigned when there is no exponential increase with the increase in concentration of that chemical.2 A spectrophotometer will be used in this experiment to measure the absorbance at a λmax of 430 nm....   [tags: Chemical reaction, Reaction rate, Chemistry]

Research Papers
866 words (2.5 pages)

Taking a Closer Look at Reaction Rate Essay

- Reaction Rate is the measure of how quickly an organism’s neurons can communicate or react to a type of stimulus. In other words it is how fast an organism’s neurons can send signals to the brain and from the brain. The anatomy of a classic neuron is rather simple. A classic neuron comprises of a body and a tail. The body has a nucleus with arms protruding outwards, these are called dendrites. Dendrites are the postsynaptic neurons for synaptic communication, they receive neurotransmitters from the presynaptic neurons....   [tags: neuron reaction]

Research Papers
1304 words (3.7 pages)

The Effect Of Chemical Reactions On The Kinetics Of A Chemical Reaction Essay examples

- Introduction and Purpose: The speed in which chemical reactions occur and the factors that affect the speed is with in the investigation of chemical kinetics, this laboratory experiment was done in a way that allowed a study into the kinetics of a chemical reaction. Accordingly, the collision theory is in factor for these chemical reactions, qualitatively explaining why the relations between reactions rates of different reactions show differences. A primitive principle for this theory contains that only under the condition of molecules colliding, will then a reaction occur....   [tags: Chemical reaction, Reaction rate, Chemistry]

Research Papers
1423 words (4.1 pages)

Essay on What Affects the Rate of Reaction?

- What Affects the Rate of Reaction. Hypothesis To form a reaction the particles must collide in high speed. The faster the particles collide the more kinetic energy is produced. This produces a bigger reaction. There are five key variables that affect the rate of a reaction (in this case with a solid and a solution): * Change in temperature An increase in heat energy within the particles leads to more kinetic energy. Therefore there is more collision of particles and it increases the rate of the reaction....   [tags: Reaction Rates Energy Science Essays]

Free Essays
2334 words (6.7 pages)

Essay about Rate of Reaction of Dilute Hydrochloric Acid and Sodium Thiosulphate

- Rate of Reaction of Dilute Hydrochloric Acid and Sodium Thiosulphate To investigate the change in rate of reaction between DILUTE HYDROCHLORIC ACID and SODIUM THIOSULPHATE as the concentration varies. PLAN A chemical reaction takes place over a specific period of time i.e. which is the time for the reactants to be formed into the products. If the reactants take a relatively short time to form the products, the reaction is known as a FAST one. The RATE of that particular reaction is high. On the other hand, a reaction which takes a longer time is known as a SLOW reaction, and as a result is known to have a LOW rate of reaction....   [tags: Reaction Rates Chemical Reactions Essays]

Research Papers
2286 words (6.5 pages)

Essay on Rate of Reaction Between Marble Chips and Hydrochloric Acid

- Rate of Reaction Between Marble Chips and Hydrochloric Acid To investigate the factors which affect the rate of reaction between marble chips and hydrochloric acid, with one in specific detail. Scientific knowledge: Marble chips erode when they are exposed to acid rain or pollution. Erosion is evident when you look at older marble buildings as in certain cases the erosion take a long time. It is more likely to occur in areas, where there is more pollution. This is because there are a greater number of industries in city than in the countryside....   [tags: Reaction Rates Chemical Reactions Essays]

Research Papers
4512 words (12.9 pages)

The Rate Law for Chemical Reaction Among Hydrogen Peroxide, Iodide, and Acid

- The Rate Law for Chemical Reaction Among Hydrogen Peroxide, Iodide, and Acid To determine the rate law for a chemical reaction among hydrogen peroxide, iodide and acid, specifically by observing how changing each of the concentrations Experiment 3 Chemical Kinetics Objectives 1. To determine the rate law for a chemical reaction among hydrogen peroxide, iodide and acid, specifically by observing how changing each of the concentrations of H2O2, and H+ affects the rate of reaction. 2. To observe the effects of temperature and catalyst on the rate of reaction....   [tags: Rate Law Chemical Reactions Science Essays]

Research Papers
3112 words (8.9 pages)

Related Searches

· Stir constantly until the sugar is dissolved and then stop the clock

· Record this time in a results table

· Repeat this experiment again for a more accurate result

· Then repeat the experiment twice with the other temperatures
(Remembering when using the Bunsen burner to wear goggles)

· Create averages for the results

Pre-test results

Time Taken for Sugar to Dissolve

Temp (°C)

1st attempt

2nd attempt














Pre-test Conclusion

My pre-test worked very well and the amounts I used of sugar and water
I chose worked so well I have decided to use them in my actual


I predict that in my experiment when the temperature is raised the
sugar will dissolve quicker. I believe this will happen because when
the temperature is increased the water gains heat energy and the
particles gain this energy, which they convert into kinetic energy,
causing them to move much faster. This means that there is a higher
chance of collision because the sugar and the water particles move
towards each other much faster, allowing a head on collision. This
collision is when the water breaks down the sugar and dissolves it.


The apparatus and method are no different to the pre-test only this
time I will test for 20°C, 30°C, 40°C, 50°C, 60°C, 70°C, 80°C and I
will repeat the readings as before.


Time Taken to dissolve (sec)

Temperature (°C)

1st attempt

2nd attempt































As I expected, when the temperature was raised the quicker the sugar
dissolved. For example at 30°C the sugar was fully dissolved at 46
seconds, but as the temperature rose to 50°C the time taken for the
sugar to fully dissolve was much shorter at 31 seconds and again as
the temperature rose to 80°C the time taken to dissolve was shortened
once again to 20 seconds. This is because when I increased the
temperature the water and sugar molecules gained more energy, which
they then converted into kinetic energy. The particles moved much
faster and there was a higher chance of a head on collision so
therefore the time taken for the sugar to dissolve decreased when I
increased the temperature.


My experiment went as planned. The temperatures and quantities that I
chose to use worked very well in the experiment. Although I took care
in keeping all factors the same for a fair test and I repeated the
experiment and worked on the averages of my findings. I still found
two anomalous results when I plotted my graph. I think this Is because
of my rate of stirring could not be kept constant. To improve the
experiment I could stir only 10 times instead of stirring constantly
throughout the dissolving process. I also think to improve my
investigation further I could repeat the readings a third time and
therefore I would have a more accurate average. A way to extend my
experiment is to test how long the sugar would dissolve if it had a
larger mass. I think this experiment was carried out with great care
and the instructions were followed to the best of my ability.
Return to