High concentrations imply that more reacting molecules are at high proximity to each other therefore intermolecular collisions are frequent therefore forming products frequently. The more concentrated the reactants, the greater the rate of reaction will be.
Magnesium ribbon Standardized hydrochloric acid concentrations 3. This increases the likelihood of reactants colliding properly and so increases the rate of the chemical reaction.
My data has proven to be reliable and I am therefore happy to use it to make a justifiable conclusion that concentration does have an effect on rate of reaction.
The constants controlled variables The quantity of Magnesium metal used will be held constant by way of using equal lengths of Magnesium ribbons and equivalent weights in grams of powdered Magnesium metal. Similarly, the duration of reaction will be determined using equivalent weights of powdered Magnesium metal.
I will be timing and watching: The rate of reaction is the speed of a reaction. Rate of Reaction of Magnesium and Hydrochloric Acid Introduction In acid-base chemical reactions, there are four main variables, which influence the rate of reaction.
I wrote down my results and then moved on to the next concentration of sodium thiosulphate. These strengths would determine the rates of reactions. Magnesium 10 Aluminum 15 Zinc Aims and objectives of the experiment The aim of this experiment is to verify the effects of surface area of solid reactants and concentration of aqueous reactants on the rates of acid-base chemical reactions.
The volume of hydrogen gas produced is measured over a few minutes, and the results are used to plot a graph. Planning - the theory and your experiment design. This will be changed by changing dilution factor.
This may be more clearly and more rapidly observed in a solution in which a yellow precipitate is formed. This is supportive of my conclusion.
Catalysts usually speed up a reaction.
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.
I drew 6 different graphs for this investigation. If more experiments are conducted at another the time, the temperature must again be checked and recorded. To improve my results, I could dry the test tubes and the measuring cylinder after they are washed to prevent diluted acids.
The pieces of magnesium ribbon that did not have much oxide on them reacted faster than those with a lot. This good because it shows that for every increase in concentration is a decrease in rate of reaction. The concentration of HCL used is independant variable because it will vary, and the time taken for the rate of reaction to take place i.
It is quite reactive giving vigorous reactions towards acids. I could test this by asking one of my peers to follow the instructions and then asking for their feedback.
Clearly indicate why the method would be expected to produce precise and reliable evidence - the results. In the case of the sodium thiosulphate - acid reaction, you can leave the thermometer in the flask and take the temperature at the end, then use an average for the temperature of the reaction.
This may have affected the rate of reaction, as water would dilute the acid. I stood up to allow more space for others to walk by between the rooms. The tube through the bung should be a short section of glass, and then a flexible rubber tube can be connected. The amount of magnesium used will stay the same 2 cm longso that it is a fair test.
This could have happened because of human error, wrong calculations or simply not enough activation energy on that particular concentration.
Hi, yeh the magnesium ribbon reacts with the hydrochloric acid in a redox reaction, where the magnesium is reduced and hydrogen is oxidised as it gains electrons from the magnesium. Chemistry Rates of Reaction Coursework In: Science Submitted By karthiksree3 I will be testing how increasing the concentration of the reactant affects the rate of reaction between hydrochloric acid and sodium elleandrblog.com to Max Trautz’s collision theory, which states that the higher the concentration of the reactant raises the.
Rate of reaction The Effect of concentration on the reaction between magnesium and hydrochloric acid. Mg(s) + 2HCl(aq) MgCl2(aq) + H2(g) Aim: In this experiment I am going observe and record the reaction between magnesium and different concentrations of hydrochloric acid/5(2).
GCSE CHEMISTRY RATES OF REACTION COURSEWORK. Download. Aim My aim is to investigate how changing the concentration of reactants can change the rate of reaction between hydrochloric acid and sodium thiosulphate.
I will be timing and watching: How quickly the reactants are used up How quickly a product is formed The rate of reaction (ROR. I am going to investigate how the rate of the reaction between sodium thiosulphate and hydrochloric acid depends on the concentration of sodium thiosulphate.
The reaction rate of a chemical reaction is the speed of production of products from reactants. Rate of reaction. The Effect of concentration on the reaction between magnesium and hydrochloric acid.
Mg(s) + 2HCl(aq) MgCl2(aq) + H2(g) Aim: In this experiment I am going observe and record the reaction between magnesium and different concentrations of hydrochloric acid/5(3). Chemistry Rates of Reaction Coursework: Sodium Thiosulphate and Hydrochloric Acid.
investigation to show how the rate of reaction between hydrochloric acid and sodium thiosulphate is affected by the concentration of the acid Simple Procedure Place a conical flask on a piece of paper with a cross on it. Add hydrochloric acid and sodium thiosulphate, and record the amount of time taken for the.Chemistry coursework rate of reaction hydrochloric acid and magnesium