Preview
Preview

Essay about Chemistry Report: Experiment on Rates of Reaction

No Works Cited
Length: 3714 words (10.6 double-spaced pages)
Rating: Blue      
Open Document
Need writing help? Check your paper »



- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Rates of Reaction
CaCO3 + 2HCl → CaCl2 + H2O + CO2
In this report I will be suggesting my predictions on what the rates of reaction will be and what the actual rates of reaction are. I will do this by collecting data from experiments and I will show this by putting data into a table.
The main aim of my experiment is to find the rate of reaction over time taken and the rate of reaction when the concentration of hydrochloric acid increases or decreases. I will try to make my experiment as accurate as I can. I will carry out three trials to make my test fair. I will also use the correct equipment for accurate results.
Also, I will be using three different variables to use in my report; The Independent Variable, Dependant Variable and the Control Variable.

The independent variable will be the amount of water and Hydrochloric Acid I use because that is what changes through the experiment.

The dependant variable will be about measuring the time it takes for the marble powder to react with different concentrations of HCl.

The control variable will be the amount of marble powder I use in each mixture and this will be the same amount in every experiment because this is what will have to be the same all the way through my experiment to get my results how I want and to measure the rates of reaction correctly.

Changes in the Rate of Reaction

Below is a list of variables that could affect the rates of reaction:

• Temperature – when the temperature is increased, the rate of reaction is quicker. This is because the particles have more energy to move around and to collide with each other. Therefore, I think the more collisions between particles there are, the faster the rate of reaction is.

• Concentration – by adding m...


... middle of paper ...


...itable because I had tested it before I did the real thing. This got my confidence up and I was ready to do the real experiment with the same method.
Last but not least, I could have used a different variable to get further evidence such as temperature. This would get more evidence because I could have investigated if temperature makes any difference to the rate of reaction – which I think it does.
Finally, I think I am confident in my conclusion because by looking at my graphs you can easily tell that the higher the concentration, the quicker the rate of reaction…
To round off everything, once again I think I could improve my experiment by repeating the experiment many times to make sure the results are more accurate, reliable and valid. I could have used better and reliable equipment and measure the concentration of HCl, calcium carbonate and water accurately.


Click the button above to view the complete essay, speech, term paper, or research paper

Need Writing Help?

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

Check your paper »







This essay is 100% guaranteed.


Title Length Color Rating  
Rates of Reaction Experiment Essay - Rates of Reaction Experiment INTRODUCTION This experiment is called ‘rates of reaction’, I will be partaking in this experiment to find out what factors effect the ‘rate of reaction’ between magnesium (strips) and hydrochloric acid. Each time I repeat the experiment, I will be adding 0.5 moles of hydrochloric acid and recording the volume of gas given out during the testing and record the time it takes to give the reaction needed. A reaction is taken place within the experiment because there is a collision of particles in each element....   [tags: GCSE Chemistry Coursework Investigation] 1512 words
(4.3 pages)
Strong Essays [preview]
Factors Which Influence the Rates of Reactions Essay - ... The acids were Hydrochloric acid, acetic acid, sulfuric acid and phosphoric acid. The zinc reacted quickly with the hydrochloric acid and created a lot of bubbles and it was followed shortly after by the zinc in sulfuric acid which also created bubbles. The zinc in the phosphoric acid reacted next with some bubbles and finally the zinc in the acetic acid reacted last with some bubbles. In the final part of phase one which was steps 9-11, five different metals were placed in Hydrochloric acid....   [tags: chemistry, experiment, collision theory] 924 words
(2.6 pages)
Better Essays [preview]
Essay on Rates of Reaction - How concentration affects the rate of reaction Aim:To investigate how different concentrations of hydrochloric aci9d affect the rate of reaction on marble chip, (calcium carbonate). Background information: Different reactions take place at different rate. The measurement of the change can take place in a single unit of time; it can take seconds, minutes, hours and even days. It can be either fast or slow. Reaction rates are explained by the collision theory. The collision theory is explained by the rate of reaction....   [tags: GCSE Chemistry Coursework Investigation] 2994 words
(8.6 pages)
Powerful Essays [preview]
Rates of Reaction Essay - Rates of Reaction Coursework. Introduction. In this piece of science coursework I will be experimenting how the rate of reaction between Sodium thiosulphate and hydrochloric acid is affected by the concentration of Sodium thiosulphate. I will measure the rate of reaction by mixing the different quantities of Sodium thiosulphate (50 - 10cm³) with a fixed quantity (5cm³) of hydrochloric acid in a Conical flask and placing the flask on top of a white sheet of paper with a cross clearly marked on it....   [tags: GCSE Chemistry Coursework Investigation] 2369 words
(6.8 pages)
Strong Essays [preview]
Rates of Reaction of the Halogenoalkanes Essay - Rates of reaction of the halogenoalkanes scientific knowledge and understanding: Halogenoalkanes are classified as either primary, secondary or tertiary. In primary halogenoalkanes the halogen atom is covalently bonded to a carbon atom which is bonded to one other carbon, to two other carbons in secondary and three others in tertiary. Apparatus for a reflux Increasing the size of the halogen atom in the halogenoalkane decreases the bond strength, increasing the reactivity of the molecule, as the bond is easier to break....   [tags: GCSE Chemistry Coursework Investigation] 1629 words
(4.7 pages)
Strong Essays [preview]
Essay on Rates of Reaction - An Experiment to show the reaction between Hydrochloric acid and Calcium Carbonate Introduction Hydrochloric acid + Calcium Carbonate Calcium Chloride + Carbon Dioxide + Water 2HCl(aq) + CaCO3(s) CaCl2(aq) + CO2(g) + H20(l) In this experiment we will be investigating the variables that can affect the speed of reaction between hydrochloric acid and calcium carbonate. During this experiment carbon dioxide is produced. This is what we are going to use to record the speed of reaction, for the faster the reaction the faster carbon dioxide is produced....   [tags: GCSE Chemistry Coursework Investigation] 3987 words
(11.4 pages)
Strong Essays [preview]
Rates of Reaction Essay example - The rate of reaction is a measure of how fast something happens. We can find the rate of reaction by measuring the change that happens in a set period of time. Introduction ------------ The rate of reaction is a measure of how fast something happens. We can find the rate of reaction by measuring the change that happens in a set period of time. Many factors can affect the rate of reaction; the concentration of the reactants is one of them. In the following experiments we will investigate how the concentration of the reactants affect the rate of reaction....   [tags: GCSE Chemistry Coursework Investigation] 940 words
(2.7 pages)
Strong Essays [preview]
Essay on Rates of Reaction - How does temperature affect the rate of reaction between sodium thiosulphate and hydrochloric acid. Temperature and Rate of Reaction Question How does temperature affect the rate of reaction between sodium thiosulphate and hydrochloric acid. sodium thiosulphate + hydrochloric acid sodium chloride +water + sulphur dioxide + sulphur Na2S2O3(aq) + 2HCl(aq) 2NaCl(aq) + H2O(l) + SO2(aq) + S(s) Prediction I predict that the higher the temperature, the more quickly reaction will occur. This is because with heat, the particles of sodium thiosulphate and hydrochloric acid have more energy....   [tags: GCSE Chemistry Coursework Investigation] 2101 words
(6 pages)
Strong Essays [preview]
Rates of Reaction Essay - Whether the strength of Hydrochloric acid will affect the speed of the rate of reaction when reacting with Magnesium Ribbon. I want to find out whether the strength of Hydrochloric acid will affect the speed of the rate of reaction when reacting with Magnesium Ribbon. Variables There are two important independent variables in my investigation the first of which is the concentration of the Hydrochloric Acid used during the investigation. The concentration of the acid will partly determine how fast the reaction takes place, if we put some of the magnesium ribbon into the HCL at 2molar then it might have simply dissolved within a few seconds and then I would not have had time to record down a...   [tags: GCSE Chemistry Coursework Investigation] 3005 words
(8.6 pages)
Strong Essays [preview]
Essay on Rates of Reaction - Investigating the rate of reaction between sodium thiosulphate and hydrochloric acid I am going to measure the rate of the reaction when hydrochloric acid is added to sodium thiosulphate. I am going to investigate what effect the concentration of the sodium thiosulphate has on the reaction rate. When sodium thiosulphate and hydrochloric acid are mixed, a yellow precipitate of sulphur is produced. The solution becomes increasingly difficult to see through as more and more sulphur is formed. This is how I plan to measure the rate of the reaction....   [tags: GCSE Chemistry Coursework Investigation] 2650 words
(7.6 pages)
Powerful Essays [preview]