The Effect of Concentration on the Reaction between Sodium Thiosulphate and Hydrochloric Acid We are given 2md/dm³ of Hydrochloric Acid = 10cm³. We are also given the measurement of Sodium Thiosulphate solution: 40g/dm³ = 50cm³ The chemical equation for this reaction is: 2Hcl + Na²S²O² 2NaCl + H²O + SO² + S I am going to investigate the effect of concentration in this reaction. To do this I will change the volume of 0.1 mol/dm³ of sodium Thiosulphate. We will keep the amount of Hcl the same, because if we altar that one it will totally change the results and there would be no pattern. We learned that if the concentration doubles, the rate doubles. I will therefore choose the dilute sodium Thiosulphate to prove this and to see if it affects the rate of the reaction. Besides concentration I know that catalysts, temperature and surface area also affect the rate of the reaction. Therefore I think that the less concentration of sodium Thiosulphate the slower the rate of the reaction will go. We did preliminary work on this experiment, I took a conical flask and put 50cm³ of sodium Thiosulphate and added 10cm³ of Hcl. Under the conical flask I put a white piece of paper and put a black cross on it. We made sure that our cross was very dark and think because if it was just a thing cross you might not see it so well and think it has disappeared even though with a thicker cross you can still see it. This is how we set it up: [IMAGE] As we are trying to find out what happens with different concentrations I will change (decrease) the amount of sodium Thiosulphate and add amounts of water to the solution with so that the concentration differs but the amount of the mixed solutions is still the same. The amount of hydrochloric acid will stay the same through the whole experiment. This is a table to show the volume of sodium Thiosulphate, water and hydrochloric acid I will use:
How am I going to make it a fair test I will use a clean flask for
have either not stir the mixture or use a machine to stir it at the
Hydrochloric Acid, Sodium Thiosulphate Reaction. Research: What is the difference between Hydrochloric acid is a strong colourless acid formed when hydrogen chloride gas dissociates in water, used in industrial and laboratory. processes. The.
Investigation of How Temperature Affects the Rate of Reaction of Sodium Thiosulphate and Hydrochloric Acid
The Effect of Temperature on the Rate of Reaction Between Sodium Thiosulphate and Hydrochloric Acid
take about 30 minutes for the water to cool down 20ºC, which is why I
Investigating the effect of Temperature on the reaction between Sodium Thiosuphate and hydrochloric acid · Planning I am investigating the different temperatures on the reaction between Sodium Thiosuphate and Hydrochloric acid. The factors I could investigate would be temperature, concentration and substances. I have chosen to investigate Temperature. I predict that the higher the temperature the more rapidly the cross would obscure.
The Effects of Concentration on Reaction Rate with Sodium Thiosulphate ---------------------------------------------------------------------- Planning = == == =
Effect of Temperature on the Rate of Reaction between Sodium Thiosulphate and Hydrochloric Acid Investigation Chemical reactions are used in our everyday life, they literally keep us alive. They are used in food, respiration and everywhere else in the environment. A chemical reaction mainly occurs when reactants react together to produce a new product. The speed at which this reaction takes place is called the rate of reaction. The product produced has a number of particles in the solution that has formed from the reactants.
Rates of Reaction - Sodium Thiosulphate and Hydrochloric acid In this piece of coursework, I will study how concentration affects the rate of reaction. I will do so by timing the reaction of Sodium Thiosulphate with an acid. In this coursework, I will include background knowledge, prediction, safety, results, calculations, graphs, an analysis, conclusion and an evaluation. In my evaluation I will comment on how reliable my results were and how I could have improved my coursework in any possible way.
5. Add Hcl, as soon as it mixes with the ( ), start the stopwatch
a bigger one so I can fit the cross under it and also be able to pour
from 10cm to 50cm to make it easier to see the difference in a graph.
The Effect of Concentration of Hydrochloric Acid on the Rate of Reaction with Magnesium Aim: To investigate the effect of concentration of hydrochloric acid on the rate of reaction with magnesium Prediction: As the concentration of the hydrochloric acid increases, so will the rate of reaction Hypothesis: In a reaction, particles of two different reactants react together to form a product. The reaction only takes place on account of two things, if the particles collide, and if the collision has enough 'activation energy'. The two reactant particles, in this case magnesium particles and hydrochloric acid particles, must collide with each other on the correct 'collision course'. If this does not occur then no chemical reaction will take place. The reaction must also have enough energy, this can be affected by temperature, the more heat the particles have the faster they move and so the more energy therefore more chance of successful collisions.
* Concentration - I will try my best to use all the acid from the