The Rate Of Reaction Between Magnesium And Hydrochloric Acid
Aim
My aim is to see how the rate of reaction between magnesium and
hydrochloric acid is affected by changing the length of magnesium.
Hypothesis
I predict that if the length of magnesium is high then rate of
reaction will be much more longer because if the length of magnesium
is more then it will take longer to dissolve and therefore it will
react for a longer time.
Apparatus
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o Measuring cylinders
o Boiling tube
o Ruler
o Stop Watch
o Magnesium ribbon
o 2 molar hydrochloric acid
o Water
Plan
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First I will set up the experiment then I will put 15cm cubed of
hydrochloric acid and 15cm cubed of water inside the boiling tube. I
will then put in a 0.5cm long piece of magnesium into the tube and I
will start the stopwatch and I will see how long the magnesium reacts
for before dissolving in the solution.
The experiment will be repeated again on numerous occasions but the
length of magnesium will be changed. I will do this by adding 0.5cm to
the length of magnesium each time.
I will repeat the experiment in order to get some accurate results.
After repeating the experiments I will have two sets of results, I
will work out the average and then I will plot the graphs.
The way that my experiment will be made fair is that only one thing
will be changed and that is the length of magnesium but all the other
things that can have an effect on the outcome will be kept the same
e.g. temperature and volume of liquid. This experiment will be done at
room temperature therefore the temperature is the same all through the
experiment. The same concentration will be used through the
experiment. (The first experiment that I will do will look at the
effect different concentration has on the
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will result in an increase in the speed of the rate of reaction it has
with a tong to see if the magnesium had started to burn and also to
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6. Heat the crucible and its content with the lid off until the magnesium begins to glow
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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.
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