Investigating What Effects The Rate Of A Reaction.

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Chemistry Coursework.

Investigating What Effects The Rate Of A Reaction.

Calcium Carbonate + Hydrochloric Acid --> Calcium Chloride + Water + Carbon Dioxide.

Ca2+CO32- + HCL --> Ca2+Cl- + H2O + CO2

Aim:

For this assignment I am going to investigate the factors which affect the rate of a

typical chemical reaction... the action of hydrochloric acid on marble chips.

Theory:

'Collision Theory of Reaction'

For a reaction to take place there must be a collision between the particles. Not every collision will cause a successful reaction because there may not be enough energy or the collision might not be powerful enough. For a successful reaction to take place there must be enough energy.

Temperature of reactants.

The higher the temperature of the reactants, the more energy they have. This will make the particles move quicker and .the chances of successful collisions will be increased.
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Cold acid. the acid particles are moving

slowly and do not have enough

to have many successful

collisions.

Hot acid. the acid particles are now moving

much faster with more energy, so

most collisions are likely to be

successful.

Apparatus: Water bath,

Stand,

Boss,

Clamp,

Bungs - vented,

Measuring Cylinder,

Container,

Stop watch,

Ice,

Conical flasks,

Thermometers,

Calcium carbonate chips,

Hydrochloric acid,

Scales.

Safety:

I shall be wearing all different sorts of ...

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