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An Investigation to See how Concentration Affects the Rate of Reaction

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An Investigation to See how Concentration Affects the Rate of Reaction

Prediction:

The higher the concentration of water mixed with the Hydrogen Chloride

and Sodium Thiosulpate the slower the rate of reaction will be.

Introduction:

By adding the water into the experiment we are diluting the solution

of the Hydrogen Chloride and Sodium Thiosulpate and therefore the

water is slowing down the reaction time.

The time taken for a reaction to take place is known as the rate of

reaction and there are many things that can change the rate of

reaction.

They are:

- The concentration of Sodium Thiosulpate and water.

- The surface area of Sodium Thiosulpate and water.

- What is done to the conical flask during the experiment (shaking).

- Fair testing.

- The temperature at which the reaction takes place,

- Using a catalyst.

Changing the concentration, will change the rate of reaction, this is

because the higher the concentration the more particles of Sodium

Thiosulpate there are to collide and react with water.

More collisions mean a faster reaction.

Water Hydrogen Chloride Sodium Thiosulpate

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