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chemistry practical about rates of reaction
chemistry practical about rates of reaction
chemistry practical about rates of reaction
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I am to investigate the factors that affect the rate at which Sodium
Thiosulfate (Na2S2O3) reacts with Hydrochloric Acid (HCl).
When sodium thiosulfate is mixed with hydrochloric acid, a reaction
takes place, leading to a precipitate of sulphur being formed. This
turns the solution cloudy. I shall use this clouding to investigate a
factor that affects the rate of reaction, the factor being
temperature.
To do this, I shall react Sodium Thiosulfate with Hydrochloric Acid at
a range of temperatures, between 20°C and 40°C, at 5°C intervals,
leading to 5 results. The experiment shall be carried out twice, to
give accuracy, and allowing me to check for agreement between results.
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. My prediction is based on the collision
theory, which says that
· Reacting species must hit together
· Species must hit together with more than the activation energy
needed
Increasing the temperature of the atoms taking part makes them move
more and faster, enabling more collisions to take place, speeding up
the reaction. The added heat energy also allows more collisions to
have the required activation energy, again, speeding up the reaction.
In order to make this experiment a fair test, I changed only one input
variable, the temperature. I kept the amount and concentration of the
liquids the same (20m...
Investigating How Changing the Concentration of Hydrochloric Acid Affects the Rate of Reaction with Sodium Thiosulphate Solution
reaction is the rate of loss of a reactant or the rate of formation of
We will set up a conical flask on top a cross. We will vary the
Investigating the Factors Influencing the Rate of Reaction Between Sodium Thiosulphate and Dilute Hydrochloric Acid
* Concentration - I will try my best to use all the acid from the
The Effect of Temperature on 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
The Arrhenius equation ln k = ln A – (Ea / RT) can be shown
The Effect of Sodium Thiosulphate Solution on the Rate of its Reaction with Hydrochloric Acid
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.
from 10cm to 50cm to make it easier to see the difference in a graph.
a bigger one so I can fit the cross under it and also be able to pour
The Effect of Temperature on the Rate of Reaction Between Hydrochloric Acid and Calcium Carbonate
My aim in this piece of work is to see the effect of temperature on the rate of a reaction in a solution of hydrochloric acid containing sodium thiosulphate.
Rate of Reaction - Sodium Thiosulphate and Hydrochloric Acid. Aim Investigation, to find out how the rate of reaction between sodium thiosulphate and hydrochloric acid is affected by changing the concentration. Introduction I must produce a piece of coursework investigating the rate of reaction, and the effect different changes have on them. The rate of reaction is the rate of loss of a reactant, or the rate of development of a product during a chemical reaction. It is measured by dividing 1 by the time taken for the reaction to take place.