The Rate of a Chemical Reaction When Changing the Concentration of Hydrochloric Acid I am going to investigate the effect of the concentration of the acid solution, Hydrochloric acid to see how this changes the rate of reaction. For my experiment I will use sodium thiosulphate as my constant and I will be changing the concentration of hydrochloric acid and water. I predict that as the concentration of hydrochloric acid increases, the rate of reaction also increases. I also think that the time taken for the experiment to finish will decrease as the concentration of the hydrochloric acid will increase. These graphs show my expected results: [IMAGE] In a high concentration, there are more particles of hydrochloric acid in a certain volume, this means there is a higher chance of a collision because there are more acid particles. As there are more collisions, the rate of reaction will increase. The 'Colliosion Theory' supports my prediction as for a chemical reaction to happen, the reacting particles must bang into, or collide, with each other with enough force or energy ( the activation energy) to break bonds. This is collision theory. If the particles do not have have this energy, they will just harmlessly bounce off one another. If two particles meet, they may rebound with no reaction, but if they collide with enough force, a chemical reaction will occur. (The Dorling Kindersley Science Encyclopedia) [IMAGE] In the low concentrated solution, it shows there are less particles of hydrochloric acid to collide with the sodium thiosulphate particles. In the second box, the high concentrated solution there are more particles of hydrochloric acid, so the chance of collision is increased. Method I am aware that there are many safety precautions which I will have to follow: · Immediately wash hands and other parts of skin if incontact with hydrochloric acid as it is an irritant and is harmful to skin and eyes. · Rinse out mixture in flask and leave water running to get rid of the
Investigation to find out if changes in concentration of acid affect the rate of a chemical reaction
Rate of Reaction Between Calcium Carbonate and Hydrochloric Acid Plan: In my experiment I will measure the rate of reaction between calcium carbonate and hydrochloric acid. The rate of the reaction is the speed that the reaction takes place so by measuring the rate I will measure the amount of time the reaction takes. Hydrochloric acid is a strong acid that is found in digestive juices in the stomach, it is also used for cleaning metals before they are coated. Calcium carbonate has a few forms including chalk and limestone the main use of these two materials is in the making of concrete, which is used for many things such as buildings. When you put calcium carbonate and hydrochloric acid together they react to form calcium chloride, carbon dioxide and water.
and therefore there is more area for the acid to react with it, and so
Investigation: How does the concentration of acid affect the rate of reaction? The aim of this investigation is to test how concentration affects the rate of reaction. My prediction for my investigation is that the higher the concentration, the faster the reaction will be.
Investigating the Effects of Dilution on the Rate of Reaction Between Sodium Thiosulphate and Dilute Hydrochloric Acid
The Effect of the Concentration of Hydrochloric Acid on the Amount of Hydrogen AIM = == I want to find out how the concentration of Hydrochloric acid affects the amount of hydrogen or the time it takes to produce 30cm3 of gas, when the Hydrochloric acid reacts with the magnesium powder. Prediction = == ==
To measure the rate of reaction I will see how long it takes for the
How does concentration affect the rate of reaction between magnesium and sodium? and hydrochloric acid. Secondary resources:.. Chemical reactions only occur when reacting particles collide with each other, with sufficient energy to react, this is called the collision theory. The minimum amount of energy required to cause this.
The Effect of Concentration of Acid on the Rate of Reaction With Calcium Carbonate Calcium + Hydrochloric ð Calcium + Carbon + Water Carbonate Acid Chloride Dioxide CaCO3 (s) + 2HCl (aq) ð CaCl2 (aq) + CO2 (g) + H2O (l) Introduction I will be using the reaction between calcium carbonate and hydrochloric acid to see how the concentration of acid affects the rate of a reaction. By doing the above experiment I will prove that the higher the concentration of acid, the faster a reaction will occur. I have carried out a previous experiment called the 'Disappearing Cross', in which I used the reaction between thiosulphate, hydrochloric acid and water to see how concentration affects the rate of reaction. When we added the hydrochloric acid to the water and thiosulphate a reaction occurred, causing the water to become foggy so that the cross was no longer visible through the conical flask. The results for the Disappearing Cross experiment were as follows; Volume of Thiosulphate (Cm3) Volume of Water (Cm3) Volume of HCl (Cm3) Concentration (%) Time taken for X to disappear (seconds) 5 25 5 17 711 10 20 5 33 286 15 15 5 50 185 20 10 5 67 113 25 5 5 83 82 You can see that when the hydrochloric acid was most dilute the cross took 711 seconds to disappear, and when the acid was most concentrated the cross took just 82 seconds to disappear.
· I know that the line will not go through the origin because at 0˚C
How Concentration affects the rate of reaction I am investigating the rates of reaction and how the different variables can affect it. I know that the temperature, a catalyst, concentration, the surface area, light and pressure of a gas can affect the rate of reaction. In this particular experiment I am going to investigate on how the concentration of one of the reactants affects the rate of reaction. To show that the concentration does affect the rate of reaction I am going to carry out the reaction of sodium thiosulphate and hydrochloric acid. The reactant I am going to change in concentration for each experiment/reading is sodium thiosulphate.
On a two pieces of paper, we drew a cross and place a beaker on top of
The effect of concentration on the rate of reaction between sodium thiosulphate and dilute hydrochloric acid
The Effect of Concentration on the Rate of Reaction Between Hydrochloric Acid and Sodium Thiosulphate
Investigating the Rate of Reaction Between Sodium Thiosulphate and Hydrochloric Acid Aim --- I will be investigating the rate of reaction between Sodium Thiosulphate and Hydrochloric acid. I intend to find the difference in the rate of reaction when I change the concentration of the Sodium Thiosulphate, as I am only changing the concentration of the Sodium Thiosulphate I will keep the concentration of Hydrochloric acid the same at all times. [IMAGE]Hydrochloric + Sodium Water + Sodium + Sulphur + Sulphur Acid Thiosulphate Chloride Dioxide [IMAGE]2HCl + Na S O H O + 2NaCl + SO + S Prediction I predict that from this experiment I will find that the weaker the concentration of Sodium Thiosulphate is to the concentration of Hydrochloric Acid, the longer the reaction will take to occur.