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Determining the activation energy for the reaction between bromide and bromate(v) ions

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Introduction

Determining the activation energy for the reaction between bromide and bromate(v) ions Chemistry Portfolio By Clement Ng 12.6 Data Collection Quantitative Data: Temperature () () Time taken to turn clear (s) () 75 6.0 65 8.0 55 15.3 47 26.3 36 76.0 25 240.0 Errors: - () Temperature error As contents in boiling tube may not be the same as the temperature in the water bath, due to heat lost in transfer process through glass. ...read more.

Middle

Secondly, it is very hard to detect the colour change; is it truly clear, or is it still faint in red colour. Therefore the stopwatch maybe stopped a little bit earlier or a little bit too late, the duration needed to turn the methyl red clear would be inaccurate, increasing the time error. - () Volume error This was due to the meniscus/parallax effect. The angle in which the chemicals are measured in, vary the volume. ...read more.

Conclusion

Once rested on the water bath again, the solution slowly turned colourless, finally it started to go cloudy, a milk like solution. Data Processing Processed table: Time (s) () Temperature (k) () 6.0 1.791 348 0.00287 8.0 2.079 338 0.00296 15.3 2.728 328 0.00305 26.3 3.270 320 0.00313 76.0 4.331 309 0.00324 240.0 5.481 298 0.00336 Graphs are presented at the last page of this report. Percentage Errors - Time Initial error: Final error: Average error: - Temperature Initial error: Final error: Average error: - Total Error: By Clement Ng 12.6 Tuesday, March 12, 2002 10:37PM ?? ?? ?? ?? -1- ...read more.

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