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Effect of concentration on the rate of reaction
The effect of temperature on the rate of a reaction
The effect of temperature on the rate of a reaction
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Recommended: Effect of concentration on the rate of reaction
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.
If the solution is stirred more there are more collisions between the particles. therefore the reaction is speeded up). Temperature of Water - °C. As the temperature increases so does the rate of the reaction. By increasing the temperature, particles move.
Apparatus: * 1 measuring cylinder * 1 test tube * 1 stop clock * A large gelatine cube containing indicator and NaOH * Hydrochloric acid ranging from 1-3 molars * A scalpel Diagram: Method: * Take the large gelatine cube and cut into 15 equal pieces * Place on piece of the cube into the test tube * Measure out 10mls of HCl in the measuring cylinder * Pour the HCl into the test tube with the gelatine cube and start the clock * Time how long it takes for the pink colour inside the gelatine cube to completely disappear * You will also notice that the cube dissolves slightly * Record your results and repeat this same process 3 times for each molar of acid: § 1 molar § 1.5 molar § 2 molar
Experiment is to investigate the rate of reaction between hydrochloric acid and calcium carbonate Hydrochloric acid + Calcium Carbonate Þ Calcium Chloride + Water + Carbon Dioxide 2HCl (aq) CaCo3 (s) CaCl2(s) H2O (aq) CO2 (g) There are a number of variables in this experiment and these are listed below as input variables and outcome variables.
will result in an increase in the speed of the rate of reaction it has
Input variables In this experiment there are two main factors that can affect the rate of the reaction. These key factors can change the rate of the reaction by either increasing it or decreasing it. These were considered and controlled so that they did not disrupt the success of the experiment. Temperature-
The aim is to find out if changing the concentration of the hydrochloric acid solution has an effect on the time taken for the reaction. The reaction that will take place is: Hydrochloric acid + Calcium Carbonate + Calcium Chloride + Water + Carbon dioxide 2HCl (aq) + CaCo3 (s) CaCL2 (aq) + H2O + CO2 (g). Collision theory - Collisions between reactant particles are needed. for the reaction to take place in order to form a product.
While measuring the effect of the use of a catalyst and temperature on the reaction rate, several factors must be kept constant. During the reaction with a catalyst, the temperature will be kept constant (at room temperature), concentration, pressure and since the reaction involves liquids, the surface area will be kept constant at all times, however they must be mixed the same.
Dependent Variables Amount of vitamin C in fruit juices. Controlled Variable Same amount of liquid for each fruit juice.... ... middle of paper ... ...
There is also the potential of human error within this experiment for example finding the meniscus is important to get an accurate amount using the graduated pipettes and burettes. There is a possibility that at one point in the experiment a chemical was measured inaccurately affecting the results. To resolve this, the experiment should have been repeated three times.
Hydrochloric acid + calcium carbonate arrow calcium chloride + carbon dioxide + water. HCl(aq) + CaCO3(s) arrow CaCl2(aq) + CO2(g) + H2O(l) Things that affect the reaction rate of this experiment are: 1. The temperature of the hydrochloric acid. 2.
One vital process in the human body observed in chemistry is the idea of chemical kinetics. Chemical kinetics is the study of the rate of reactions, or how fast reactions occur.1 Three factors that affect chemical kinetics are concentration, temperature, and catalysis. As the concentration of a substance increases, the rate of the reaction also increases.1 This relationship is valid because when more of a substance is added in a reaction, it increases the likelihood that the
acid and water to see how it affects the rate of reaction. I will use
An investigation into how changing one variable influences the rate of reaction between marble chips and dilute Hydrochloric acid
Before conducting my experiment I will research into, amongst other things, the factors that affect the rate of a reaction. This is so that I may enough information to understand the effect of temperature on the rate of a reaction and also gain appropriate understanding to make a suitable prediction as to what the outcome of my experiment will be.
Rate of Reaction - Sodium Thiosulphate and Hydrochloric Acid. Aim Investigation, to find out how the rate of reaction between sodium thiosulphate and hydrochloric acid is affected by changing the concentration. Introduction I must produce a piece of coursework investigating the rate of reaction, and the effect different changes have on them. The rate of reaction is the rate of loss of a reactant, or the rate of development of a product during a chemical reaction. It is measured by dividing 1 by the time taken for the reaction to take place.