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rates of reaction

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Introduction

The rates of reaction The purpose of our investigation was to find out if the surface area of marble chips, affect the rate of reaction and to find out which method would give the best and most accurate results. We did this by measuring out the same volume of acid and add it to a measuring cylinder. ...read more.

Middle

As we tipped in the marble powder to the acid solution we started the stop watch and waited for the marble powder to dissolve. Apparatus: Measuring tube Thermometer Large measuring cylinder Stop watch Acid Small/Large/Powdered Marble chips Set of scales When finishing our experiment we consulted a table of results. Which looked something like this: Table 1 Acid used Sizes & weight Temperature �C Time Taken 40 cm3 Powder 0.96g 22�C 8.02 secs 40 cm3 ...read more.

Conclusion

1.42g 22�C 38 mins 35 secs I think that it makes a big difference of the rate of reaction depending on the surface area of marble chips and the amount of acid cm3 there is. So as we can see on table one that there is less weight of the marble then on table 2. But the amount of acid stayed the same ?? ?? ?? ?? Matt Benison Chemistry 10a/Sc2 10FC Mrs Kirpalani 1 ...read more.

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This report is limited significantly by its length. It missed some of the key elements to successfully investigate and draw conclusions about the effect of surface area on the rate of reaction. There are a number of improvements suggested throughout the report.

Marked by teacher Cornelia Bruce 17/04/2013

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