Measuring the rate of reaction between hydrochloric acid and magnesium.

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Measuring the Rate of Reaction between Hydrochloric Acid and Magnesium

Aim

To investigate the rate of reaction between Magnesium and varying concentrations of Hydrochloric acid.

Prediction

As the concentration of Hydrochloric acid increases so therefore the rate of reaction should also increase  

Reasons  

I have chosen to change the concentration of Hydrochloric acid  this is my independent variable

 This graph shows us that there are more collisions because there are more particles therefore the rate of reaction increases too. The rate of reaction increases because the number of collisions with enough energy to cause also increases.

Other Factors to Control

Temperature – When the temperature in a reaction increases the rate of reaction also increases. This is because the number of collisions between particles increases as they change thermal energy into kinetic energy (particles move around more).The particles collide more often with enough energy to break bonds and make new bonds.

Pressure – When pressure is increased in a reaction the rate of reaction also increases.  When pressure is added the particles have been squashed together in a smaller volume, therefore there will be more collisions  between particles.

         

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Size of Particle – When a particle is big in size the arte of reaction will be slow, but if it is small in size the rate of reaction is fast. When the size of the particle is small it has a large surface area, therefore the number of collisions will also increase with sufficient energy

If the marble chip is split up more of its surface area can react with the acid.

To measure the rate of reaction we will measure both volume of gas ...

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