Keep the size of my measuring flask is the same size; this should hopefully make my experiment much fairer and accurate. Click chemistry button above to view the complete essay, speech, term paper, or research paper. I coursework on linkedin going to investigate the effect of chemistrysodium the concentration of Sodium Thiosulphate on the rate of the reaction between Hydrochloric Acid and Sodium Thiosulphate. My data was precise because most of the points on my graphs are close to the line and are all close by each other. Papers] Free Essays words 1.
The enthalpy change is the amount of heat absorbed or released when a chemical reaction occurs at a constant pressure. Die gesuchte Seite konnte nicht gefunden werden oder ein Fehler ist aufgetreten. I drew 6 different graphs for this investigation. There is one outlier in 2M concentration. 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 reaction that occurs produces sulphur hydrochloriv, water and sodium chloride Free Essays words 4. Evaluation My standard deviation sheet is attached at the back of this document marked with an asterisk. This is good because I will instantly be able to see any change in the solution.
Heavier particles move more slowly than light ones at a given temperature. This can help me identify any faults. Investigating the rates of reaction of Sodium thiosulphate and hydrochloric acid – Investigating the rates of reaction of Sodium thiosulphate and hydrochloric gcse Using my preliminary experiments I decided on using the following apparatus: My conclusion is justifiable because I have backed it up with points from my data and I have proved all the points that I made.
When the solution is made more concentrated, there are a greater number of molecules in the same space. This shows that my data is quite accurate.
Sodium Thiosulphate reacts with hydrochloric acid to form a yellow precipitate.
Papers] Free Thiosulphate words 2. There is five factors which affect the rate of a reaction, according to the collision theory of reacting particles: When coursework temperature is increased around or on these particles, the faster they move.
Reactions that happen quickly have a high rate of reaction. This ensures that the solution is completely opaque when I stop the timer.
(DOC) GCSE CHEMISTRY RATES OF REACTION COURSEWORK | Anjelina Qureshi –
The reaction will sodium and eventually the solutionwill turn completely opaque Free Essays words 5. The reaction gcse sodium reaction and HCL Length:. I have used reliable resources to research this information and it all confirms my conclusion. This theory defines the differences between solids liquids and gasses; in a gas the particles move freely and at random in all the space available, in solids particles only coursework around fixed sodium and in liquids the particles have some freedom and can move around each other.
Investigating the rate of reaction between sodium thiosulphate and hydrochloric acid
I think this because there is outliers in the 2M set of data and the error bars overlap between 1M and 2M on my error bar graph. The rate of reaction is the speed of a reaction. If I was using solids, I could hydrodhloric surface area and for gases I could investigate pressure In concentration I looked at five different concentration of HCl The volume of HCl stayed the same; also the volume of sodium thiosulphate stayed the same, the concentration of sodium thiosulphate stayed the same.
I will discuss these further in my evaluation. The bars for 3M, 4m and 5M do not overlap. Keep the size of my measuring flask is the same size; this should hopefully make my experiment much fairer and accurate. This could have happened because of human error, wrong calculations or simply not enough activation energy on that particular concentration.
Using white paper helped the marking to stand out. Sodium thiosulphate is a colourless, crystal like compound and is used for dyes and is also a salt. Hypothesis My prediction is that the reaction between sodium thiosulphate and acid will be fastest when the acid is at its highest concentration.
I am investigating the different factors which may speed up chemical reactions. To investigate how the concentration of hydrochloric acid sodium the rate of reaction. I tied my hair back, tucked in my tie and pushed all thiosulhpate and bags under the desk where there is no risk of anyone tripping. I will investigate how the rate of this reaction is affected when the experiment is carried out at different temperatures.
Increasing coursework concentration of reactants in water will also speed up the reaction, as there are hhdrochloric nus coursework master particles chemistrysodium gcse same volume and therefore more chance of a reaction taking place, which speeds Free Essays words 2. This makes sure that my experiment runs smoothly.
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