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Rates Of Reaction Essay Research Paper Rates (стр. 2 из 2)

temperatures because the reaction is going quicker and so more H2 is given off

in that amount of time.

There is more H2 given off if you compare it to the range of concentrations

that you are using, this shows that the reaction is at different stages and so

is therefore producing different amounts of H2.

Also our results were not accurate but this could be because of a number of

reasons.

There our many reasons why our results did not prove this point accurately. -

At high temperatures the acid around the magnesium starts to starts to dilute

quickly, so if you do not swirl the reaction the magnesium would be reacting

with the acid at a lower concentration which would alter the results. – Heating

the acid might allow H Cl to be given off, therefore also making the acid more

dilute which would also affect the results. – When the reaction takes place

bubbles of H2 are given off which might stay around the magnesium which

therefore reduces the surface area of the magnesium and so the acid can not

react properly with it so this affects the results.

To get more accurate results, we could have heated the acid to a lower

temperature to stop a large amount of H Cl being given off. The other main

thing that could have helped us to get more accurate results is we cold have

swirled the reaction throughout it to stop the diluting of the acid and the

bubbles of H2 being given off.

If I had time I could have done the reactions a few more times to get a better

set of results. This would have helped my graphs to show better readings.