SODIUM THIOSULPHATE AND HYDROCHLORIC ACID COURSEWORK EVALUATION

The results are initially processed into graphical form ‘graphing’ gcse several reasons for both the thiosulphate and evaluating the experimental. Casatoria in dreptul roman si contemporan. Log In Sign Up. Aim The aim is to investigate how changing the concentration of reactants can change the rate of reaction between hydrochloric acid and sodium thiosulphate. So what we are after is the main ‘trend s ‘ or ‘pattern s ‘ describing with reference chemistrysodium the graphs. I would also change. Was marked with a passing grade words – 3 pages Disappearing X ExperimentIntroductionI am going to investigate the rate of reaction between sodium thiosulphate thio and hydrochloric acid.

Small 97 ml ml ml ml mlMedium 70 ml ml ml ml mlLarge Click here to sign up. The experiment shall be carried out twice, to give accuracy, and allowing me to check for agreement between results. Skip to main content. 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.

Rates of reaction of Sodium Thiosulphate with Hydrochloric Acid

I could test this by asking one of my peers to follow the instructions and then asking for their feedback.

Sodium thiosulphate is a colourless, crystal like compound and is used for dyes and is also a salt.

I think that my method for my investigation is easy to follow. As the hydrochloric acid mixes with the sodium thiosulphate and the water in the flask, the stopwatch is started.

Get inspired and start your paper now! thiosulphtae

The state symbol for sulphur dioxide is aq not g because it is dissolved in water as its original state would be too toxic and corrosive for me to use safely. Help Center Find new research papers in: This causes a quicker reaction.

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(DOC) Sodium Thiosulphate in Hydrochloric Acid | Antonio Motta-Marques –

The experiment had no outliers Concentration increase speeds up a reaction because there are more particles to collide with each other, therefore creating more of a possibility of a faster reaction. This is because when there are more molecules in the solution, there coursewirk more molecules to collide so this will speed up the reaction, and therefore it is more likely they will collide with each other.

sodium thiosulphate and hydrochloric acid coursework evaluation

It is often used as a chemical intermediate and in petroleum production, food processing, pickling, and metal cleaning. Sodium thiosulphate Na2S2O3after reacting with Hydrochloric Acid HCl produces yellow sulphur, which is the cause of the solution hydrochlofic cloudy. I am investigating the different thuosulphate which may speed up chemical reactions. Clearly indicate why the method would be expected to produce precise and reliable evidence – the results!

Skip to main content. This could have happened if the measuring cylinder was not placed at eye level when the chemicals.

sodium thiosulphate and hydrochloric acid coursework evaluation

Gcse you haven’t already chosen the VARIABLE, do so now, and make a prediction and justify it reaction some theory which you may coursework previously described and should refer to. The graph obtained from the results has a strong resemblance to the one in the prediction. There are a few mild outliers.

Preliminary workBefore doing our main experiment, we will have to conduct another experiment, to see what concentration of acid we will have to use.

I predict that as the temperature that the reaction takes place at increases, the less time it will take for the reaction to take place and for the solution to cloud.

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Sodium thiosulphate and hydrochloric acid coursework conclusion – Analysis of Reducing Sugars

This shows that as you increase the independent variable the concentrationthe other variable the time taken for the experimentwent down. The factors to discuss thiosulphate be.

Click here to sign up. The amount of time taken for the reaction to occur is known as the reaction rate. Rate of Reaction and Specific Rate Constant. I will be timing and watching: As I was using liquids, I had to consider concentration and temperature of the liquids. Also in order to make it a fair test I am going to keep the following variables the same: Planning – thiosulphate theory and your experiment design! They react as in the equation below: When calcium carbonate is added to hydrochloric acid a reaction takes place.

Chemistry-Sodium Thiosulphate Found what you’re looking for? How The Rate Of Reaction Changes In A Reaction Between Hydrochloric Acid And Sodium Thiosulphate words – 4 pages take a slow process and say that we add a catalyst, our catalyst is a ladder this enables the people molecules to get over the wall quicker and easier than they normally would.

To do this I would make sure that: To investigate the action of saliva and 3 hydrochloric acid in two carbohydrate solution Results Table1: The observations were then recorded in the results table.