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AN EXPERIMENT TO FIND OUT THE EFFECT ON THE CONCENTRATION OF THE RATE OF A CHEMICAL REACTION The Reaction Mg(S) H2SO4 › MgSO4(aq) + H2(g) Introduction To setup the apparatus as shown in the diagram. To time how long it takes to collect 10cm3 of hydrogen gas. Then to alter the concentration of the acid and see if it takes a longer or a shorter amount of time to collect the same volume of gas. Apparatus Variables I will Keep The Same 1) The length of magnesium(2cms) 2) The same volume of liquid in the reaction boiling tube(25cm3) 3) The temperature of the acid. Variables That I Will Change Run Volume of Acid(cm3) Volume of Water(cm3) 1 25 0 2 20 5 3 15 10 4 10 15 5 5 20 Prediction I predict that the more water that is put into the boiling tube with the acid, the longer it will take to fill 10cm3. Results First test Run Volume of Acid(cm3) Volume of Water(cm3) Results in seconds 1 25 0 14.3 2 20 5 17.07 3 15 10 20.91 4 10 15 48.8 5 5 20 5.20.00 minutes Second Test Run Volume of Acid(cm3) Volume of Water(cm3) Results in seconds 1 25 0 15.94 2 20 5 22.8 3 15 10 27.59 4 10 15 56.19 5 5 20 5.00.03 minutes Average ...

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