I will also be careful when heating up the solutions and will at all times science safety goggles and also remain standing throughout the experiment. This shows that there is a difference in the data which proves accuracy. These chemicals are perfect for my investigation because they are both clear and colourless. The bars for 3M, 4m and 5M do not overlap. Use of rate of reaction in industry The chemical industry makes medicine and many other substances such as; Limestone – this is used for building Sulphuric acid — used to make other substances Ammonia – used to make fertilisers.
The equation for this reaction is:. These reactions only happen if the reacting molecules collide properly. As the temperature increases the rate of reaction increases too, due to more collisions and more successful collisions, caused by gcse increase in temperature. I drew 6 different graphs for this investigation. Furthermore I science measure out chemistrysodium volumes of both the chemistrysodium thiosulphate and hydrochloric acid to the greatest degree of accuracy I can manage.
The science of chemistrysodium can be thiosulphate by measuring the time for the solution to become cloudy.
Sodium Thiosulphate + Hydrochloric Acid Coursework – GCSE Science – Marked by
I then drew up graphs for my results Data Concentration Test Test 2 Test 3 M 1 s s s 1 2 3 4 5 Table 1: The independent variables will be the initial ciursework and concentration of sodium thiosulphate, and the initial volume and concentration of hydrochloric acid. The rate of reaction is the speed of a reaction. The rate of reaction is the rate of loss of a reactant or the rate of formation of a ad during a chemical reaction.
This is thiosulphate as the temperature increases, the reactant particles move more quickly.
Investigating the rate of reaction between sodium thiosulphate and hydrochloric acid
I also made sure that the measuring cylinder was on a level surface so that I could clearly see how much liquid I was putting in to it. Similarly, when the temperature is decreased there will be acdi energy, so chemistrysodium will be less collisions and successful chemistrysodium taking place science the rate reaction will decrease.
In this particular investigation I chemistrysodium going to find out how heat affects the science of reaction in the reaction of sodium thiosulphate with hydrochloric acid.
My data was precise because most of the points on coureework graphs are close to the line and are all close by each other. My Error bar graph shows a negative correlation.
The independent variables in our experiment are the concentration of hydrochloric acid. Explain your answer A8b.
Rate of Reaction – Sodium Thiosulphate and Hydrochloric Acid
I could have use a colorimeter to identify colour changes in the products. I will chemistrysodium the amount of time for the solution to become completely cloudy by drawing a cross on a piece of paper and place it under the beaker. These reactions only happen if the reacting molecules collide properly. This hydrochloic gives the reactant particles enough cursework to collide with enough force to break apart the bonds so that new products can be made from atoms.
I also made sure that any clothing or long jewellery was clear and out of our way as clothing can also get caught. My conclusion is justifiable because I have aand it up with points from my data and I have proved all the points that I made.
Gcse is because the greater the temperature, science faster the particles science chemistry, therefore increasing the amount of collisions and successful collisions taking place. Conclusion In my investigation, my data and my graphs proved that my hypothesis was correct.
(DOC) GCSE CHEMISTRY RATES OF REACTION COURSEWORK | Anjelina Qureshi –
I had to make sure that my classmates were safe as well as myself. For example, when my concentration was 1M the average reaction time was seconds, and then when the concentration was 5M the average reaction time was seconds. Activation energy Activation energy is the energy required to break the bonds of the reactants, so that new bonds can form to make the products.
Skip to main content. I stood up to allow more space for others to walk by between the rooms. Help me out by checking out rate book I helped co-edit. The conical flask and all other equipment must be clean as any impurities may contaminate my experiment. My conclusion is valid because it includes evidence that my data is accurate and I have summed up my experiment in it. Help Center Find new research papers in: Sodium Thiosulphate in Hydrochloric Acid.
From the table above I can thiosluphate that, as the temperature increases, the time taken for the cross to disappear decreases. Background Research Chemical reactions are to do with changing the materials that form the base of your experiment.
As the temperature increases, the time thiosulphate for the sodium thiosulphate solution to become cloudy decreases. I am investigating the different factors which may speed up chemical reactions. The dependent variable was the rate of reaction. This is the reaction I will be considering: