Rate of Reaction

Preliminary results

I will gather some preliminary results to produce better final results; this will create a better accuracy in my final results as I will take my preliminary results and create a range of results where I will omit results that do not fit.

Time (minutes) Gas Produced (ml) HCl (ml) Water (ml) CaCl2 (grams)

1 25 25 0 1

1 1 20 5 1

1 0 20 5 3

1 8 10 15 1

1 45 20 5 1

1 20 15 10 1

1 25 25 0 1

1 1 5 20 1

1 8 10 15 3

1 45 15 10 1

1 20 10 15 2

By looking at these results I found that It is better to use one gram of calcium chloride as it would be wasteful to use two. The amount of acid that I am using would not react with all the calcium chloride so the acid to calcium chloride ratio I am using is fine.

That ratio being: 1 gram of CaClІ to 25 ml of HCl to water ratio.

And the time period is also suitable as the reaction is complete after around 50 seconds.

To collect my final results I will use a conical flask which is where the reaction will be taking place the conical flask will have a bail arm to a rubber tube which will be connected to a