Chemistry Report: Experiment On Rates Of Reaction

3605 words - 14 pages

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 more acid than water in a concentration it will make the reaction quicker because there is more acid than water to react with the marble powder. If you add more water, then the reaction will take longer because there is less acid to react with the marble powder.

• Surface Area – if we increase the surface area, we increase the rate. Surface area is the measure of how much surface is exposed. So, marble chips have a smaller surface area than the marble powder. This means that the rate of the marble powder will be quicker than the marble chips.

Here are a few reasons why changing the variable may have an effect:

• Temperature – as explained above; if you were to change the temperature, it will change the rate as well. This is because the heat provides energy to the acid and water particles, which will mean that they react with the marble powder (calcium carbonate) more.

• Concentration – whenever you change the concentration there is always going to be a change in the rate of reaction. For example, when you change the concentration of acid, it is more likely to react quicker because there are more acid particles in the same mixture. So, there is a greater chance of acid particles colliding with each other on the...

Find Another Essay On Chemistry Report: Experiment on Rates of Reaction

Rates Of Reaction Investigation Essay

1543 words - 6 pages sufficient size for my experiment as well. If it were too small, it wouldn't be able to measure the full amount of gas produced. Also, as a result of my preliminary work, I can choose an appropriate size for the Magnesium Ribbon that will be used in the experiment. If I make the size of the Magnesium Ribbon too large, then the reaction would take too long, but on the other hand, if the size is too small, then the reaction would have completed too

Rates of Reaction Essay

2549 words - 10 pages were so absurdly small they are all but indiscernible. Stability of conclusion. Obviously, with more time, more readings would have been taken to form a more accurate curve on the graph. However, I believe that sufficient information was recorded to form a firm conclusion and to prove the aforementioned theory to be correct. Bibliography: --------------- * www.purchon.com/chemistry.htm * BBC bitesize revision (online). * Website entitled: - Collisional Theory Of Reaction Rates * The Learning Centre (online.) * Chemistry Textbook.

rates of reaction

3996 words - 16 pages Investigation Rates of Reaction InvestigationAim: To investigate the effect of concentration on the rate of reaction between hydrochloric acid, water and magnesium. I am investigating the following reaction: Mg + 2HCl MgCl2 + H2 Magnesium + Hydrochloric Acid Magnesium Chloride + Water During this investigation we will be trying to find out how much affect different concentrations of hydrochloric acid has on the production of hydrogen (product

Rates of reaction

2843 words - 11 pages An excellent project, very perceptive -BACKGROUND INFORMATIONWhat affects the rate of reaction?1) The surface area of the magnesium.2) The temperature of the reaction.3) Concentration of the hydrochloric acid.4) Presence of a catalyst.In the experiment we use hydrochloric acid which reacts with themagnesium to form magnesium chloride. The hydrogen ions givehydrochloric acid its acidic properties, so that all solutions ofhydrogen chloride and

Rates of Reaction of the Halogenoalkanes

1616 words - 6 pages 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

Rates Of reaction- The reaction between limestone and hydrochloric acid

873 words - 3 pages think this as all the particles of limestone will be roughly the same size, the particles have a larger surface area than cubed limestone, therefore it will react the quickest. If you were to use cubed limestone it wouldn't be fair as no cube will be exactly the same size. In conclusion to this experiment, 0.5M of acid was the best to use as it had the best measurable reaction time.EquipmentThe equipment we will be using during this experiment is

Report on Australia's declining birth rates

1153 words - 5 pages Report on Australian decreasing birth rate.What is the issue?The decrease of fertility rates as a result of changing attitudes in society. With low birthrates and an ageing community, our country is faced with a population crisis.Where is the focus of the issue, in spatial dimensions? Why is an issue in this area? Or is this a global issue?This decline in babies being born is effecting the population worldwide. Italy and Spain have the lowest

Rates of Reaction - Sodium Thiosulphate and Hydrochloric acid

1973 words - 8 pages Rates of Reaction - Sodium Thiosulphate and Hydrochloric acid In this piece of coursework, I will study how concentration affects the rate of reaction. I will do so by timing the reaction of Sodium Thiosulphate with an acid. In this coursework, I will include background knowledge, prediction, safety, results, calculations, graphs, an analysis, conclusion and an evaluation. In my evaluation I will comment on how reliable my results were and how

Investigating how surface area affects rates of reaction

782 words - 3 pages Investigating how surface area affects rates of reaction.Background Info:Enzymes are biological catalysts. They break down the chemical they are uniquely made for, such as proteins, fats and some harmful substances like Hydrogen Peroxide.An enzyme basically works on a key and lock like system. The enzyme is unique to its self but many others may be close to the exact shape, but not quite. Therefore allowing substrates to fit into its activesite

Investigating Reaction Rates of Sodium Thiosulphate and Hydrochloric Acid

2235 words - 9 pages Investigating Reaction Rates of Sodium Thiosulphate and Hydrochloric Acid Aim: To investigate the rate of reaction of Sodium Thiosulphate and Hydrochloric acid. In this investigation I will be varying the concentration of Sodium Thiosulphate only and not the Hydrochloric acid concentration. In this investigation I will use the following word equation: Sodium Thiosulphate + Hydrochloric acid In this

The effecfts of salt on the boiling point of water - Chemistry - Report

2117 words - 9 pages Preliminary Chemistry - Task 3: Practical Investigations Scientific Report Aim – to plan and perform an investigation to identify and describe the effect of salt on the boiling point of water Hypotenuse – If salt is added to boiling water, the boiling temperature of the solution will be increased. The higher the concentration of salt, the higher the boiling point temperature will be. This is because more energy is required as the salt is a

Similar Essays

Chemistry Experiment On The Reaction Of Different Metals When Exposed To Acid

891 words - 4 pages Before the experiment, I wrote down a prediction. My hypothesis towards the experiment was that magnesium would have a bigger reaction with the acids. The reactivity of an element depends on its ability to gain or loose electrons which are used for bonding. The more reactive an element, the more easily it will combine with others. From this information, I know that magnesium has a stronger ability to gain or loose electrons which makes the metal

This Is A Chemistry Lab Report On An Acid Base Titration Experiment

2736 words - 11 pages indicator is concurrent with a color change or some other physical change which informs the observer of the solution's approximate pH. A decreased amount of H3O+ (a product of acid dissociation) makes it more probable for the dissociation reaction of the indicator to occur since equilibrium must be maintained. Depending on the specific dissociation constant of each indicator a different H3O+ concentration (and thus pH) will trigger the

Formal Lab Report Rates Of Reaction Alkali Metals And Alkaline Earth Metals

1825 words - 8 pages splint went into the test tube.Hydrogen gas is produced.DiscussionAll of the theories discussed in the introduction on first ionization energy, atomic radius and metal oxides have all been proven in this lab. Alkali metals are much more reactive than Alkali earth metals and this is due to ionization energy and atomic radius. The Alkali metals rates of reaction increase as you go down the periodic table and this is also explained by ionization energy

The Yield From An Acid Carbonate Reaction Chemistry Practical Report

1044 words - 5 pages CO? yield and the actual yield is approximately 0.2% ? 0.9 ? Account for any difference by reflecting on the accuracy of measurements and technique and considering the chemistry of the reaction products. This experiment proved to be very accurate as the percentage error between the theoretical value of CO? yield and the actual value was 0.2%. This very small difference would be due to a series of minor errors in the process of conducting the