Oops, we could not find the requested page. Skip to main content. The room temperature could have affected my reaction and this could be the reason that I have some outliers. Free Essays words 1. To investigate the rate of reaction of Sodium Thiosulphate and Hydrochloric acid.
The rate of reaction is the rate of loss of a reactant or the coursework thiosulphate formation of a product during a chemical reaction Free Essays words 6. The rate of reaction is the rate of loss of a reactant or the rate of formation of a product during a cover letter for customer service advisor position reaction. Help Center Find new research papers in: Aim My aim is to investigate how changing the concentration of reactants can change the rate of reaction between hydrochloric acid and sodium thiosulphate. Sodium Thiosulphate in Hydrochloric Acid.
It is measured by dividing 1 by the time taken for the reaction to take place. This could have happened because of calculation errors, human errors, recording errors or a fault with the equipment that we used.
I will discuss these further in my evaluation. I made sure that I had everything before I started.
(DOC) GCSE CHEMISTRY RATES OF REACTION COURSEWORK | Anjelina Qureshi –
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. This shows that as you increase the independent variable the concentrationthe other variable the time taken for the experimentdodium down. I used this to gauge when to stop the reaction — when the black x was obscured by the white sulphur precipitate, the timer was stopped.
The reaction between sodium thiosulphate and HCL. Log In Sign Up. This shows that there is no real difference between the results.
When coursework temperature is increased around or on these particles, the faster they move. Free Essays words 4.
The points in the top right are quite far down so this shows a negative correlation. Help Center Find new research papers in: I did, however find some outliers in my results. There is one outlier in 2M concentration.
This causes a quicker thiosulphste. The independent variables in our experiment are the concentration of hydrochloric acid. This shows that there is a difference in the data which proves accuracy. I also made sure that the measuring cylinder was courzework a level surface so that I could clearly see how much liquid I was putting in to it. Dependent variables are not controlled by the experimenter. Papers] Free Essays words 5. The enthalpy change is the amount of heat absorbed or released when a chemical reaction occurs at a constant pressure.
What factors affect the rate pf reaction between sodium thiosulphate and hydrochloric acid?
This is good because I will instantly be able to see any change in the solution. Sodium Thiosulphate in Hydrochloric Acid. I decided that it would be best for me to use a bold marker pen to make the mark more visible under the conical flask.
Heavier particles move more slowly than light ones at a given temperature. My data was precise because most of the points on my graphs are close to the line and are all close by each other. Extension To extend chemistrysodium chemistrysodium I could have investigated different factors.
My data was quite accurate because all of my data follows a particular pattern and the points are all close together. The reaction that occurs produces sulphur dioxide, water and sodium eeaction Free Raection words 4. Keep the size of my measuring flask is the same size; this should hopefully make my experiment much fairer and accurate. I did not swirl these together because I wanted to see the rate of reaction without any intervention.
This is the reaction I will be considering: Graphs All of the graphs that I drew for this investigation show a negative correlation.