Magnessium and Hydrochloric Acid
In this investigation I am trying to find out whether or not the concentration of hydrochloric acid affects the rate of reaction. To do this we are going to make up different concentrations of hydrochloric acid starting with 100% and working our way to 20%.I predict that as the concentration of the hydrochloric acid increases then the yield of hydrogen also increases as the reaction continues. I have predicted this, as there are many reasons behind increasing the rate of hydrogen being produced by this reaction between magnesium and hydrochloric acid. The rate of reaction depends on how many successful collisions there are between the acid (hydrochloric acid) and the metal, which, in this experiment is magnesium. This can be explained by the collision theory. The basic idea, behind this, is that particles have to collide, and collide hard enough in order for a reaction to take place. One of the factors that determine the rate of reaction is the temperature of the substance, which is being analysed. When the temperature is increased, the particles move more rapidly. If they are moving faster, they are going to have more collisions between the acid and magnesium.
! Time the reaction. From when it starts to fizz, bubble, and stop when no fizzing and bubbling happen.
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Approximate Word count = 1517
Approximate Pages = 6 (250 words per page double spaced)
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